Wall clock time and date at job start Sat Apr 11 2020 06:11:34 AMSOL-version 7.1 by G. D. Hawkins, D. J. Giesen, G. C. Lynch, C. C. Chambers, I. Rossi, J. W. Storer, J. Li, J. D. Thompson, P. Winget, B. J. Lynch, D. Rinaldi, D. A. Liotard, C. J. Cramer, and D. G. Truhlar Copyright 2004 by Regents of the University of Minnesota. All rights reserved. Notice: recipients of this code are asked to comply with the user agreement in Section 1 of the documentation file. ******************************************************************************* * 1SCF - SCF CALCULATION WITHOUT GEOMETRY OPTIMIZATION * - USE EF ROUTINE FOR MINIMUM SEARCH (DEFAULT) * GEO-OK - OVERRIDE INTERATOMIC DISTANCE CHECK * TLIMIT= - A TIME OF 15. SECONDS REQUESTED * CHARGE - CHARGE ON SYSTEM= -1 * AM1 - THE AM1 HAMILTONIAN TO BE USED * DEV - DEVELOPER OPTIONS ARE ALLOWED * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS USER-SPECIFIED * DIELEC - THE SOLVENT DIELECTRIC CONSTANT IS 2.06 * IOFR - THE SOLVENT INDEX OF REFRACTION IS 1.4345 * ALPHA - THE SOLVENT ALPHA IS 0.00 * BETA - THE SOLVENT BETA IS 0.00 * GAMMA - THE SOLVENT MACROSCOPIC SURFACE TENSION IS * 38.93 CAL MOL^-1 ANGSTROM^-2 * FACARB - THE FRACTION OF AROMATIC CARBONS IS 0.00 * FEHALO - THE FRACTION OF ELECTRONEGATIVE HALOGENS IS 0.00 ******************************************************************************* Atom NO. Chemical Bond length Bond angle Dihedral angle number (k) symbol (angstroms) (degrees) (degrees) (I) NA:I NB:NA:I NC:NB:NA:I NA NB NC 1 1 C 2 2 C 1.52999 * 1 3 3 C 1.53002 * 109.47057 * 2 1 4 4 H 1.09001 * 109.46956 * 305.00201 * 3 2 1 5 5 C 1.53005 * 109.46961 * 185.00081 * 3 2 1 6 6 N 1.46502 * 109.46898 * 65.00365 * 3 2 1 7 7 C 1.34780 * 119.99656 * 204.99962 * 6 3 2 8 8 O 1.21275 * 120.00277 * 359.97438 * 7 6 3 9 9 C 1.50696 * 119.99844 * 179.97438 * 7 6 3 10 10 N 1.46895 * 109.47214 * 180.69256 * 9 7 6 11 11 C 1.46904 * 110.99767 * 63.62988 * 10 9 7 12 12 C 1.53238 * 109.33820 * 172.74444 * 11 10 9 13 13 N 1.47082 * 108.52302 * 53.82973 * 12 11 10 14 14 C 1.34780 * 120.88323 * 128.78809 * 13 12 11 15 15 O 1.21585 * 119.99769 * 354.87169 * 14 13 12 16 16 N 1.34772 * 120.00047 * 174.86995 * 14 13 12 17 17 C 1.46491 * 119.99965 * 174.91755 * 16 14 13 18 18 C 1.53008 * 109.46952 * 179.97438 * 17 16 14 19 19 C 1.50707 * 109.47031 * 179.97438 * 18 17 16 20 20 H 1.08005 * 119.99887 * 359.97438 * 19 18 17 21 21 C 1.37876 * 119.99974 * 179.97438 * 19 18 17 22 22 N 1.31515 * 119.99951 * 179.97438 * 21 19 18 23 23 Si 1.86797 * 120.00008 * 0.02562 * 21 19 18 24 24 H 1.48496 * 109.47625 * 89.99818 * 23 21 19 25 25 H 1.48505 * 109.46940 * 210.00127 * 23 21 19 26 26 H 1.48502 * 109.47067 * 329.99419 * 23 21 19 27 27 C 1.47081 * 118.23700 * 308.81519 * 13 12 11 28 28 C 1.46897 * 111.00246 * 299.32570 * 10 9 7 29 29 H 1.09005 * 109.47125 * 180.02562 * 1 2 3 30 30 H 1.09005 * 109.46846 * 299.99785 * 1 2 3 31 31 H 1.08994 * 109.47565 * 59.99883 * 1 2 3 32 32 H 1.09005 * 109.46846 * 240.00215 * 2 1 3 33 33 H 1.09005 * 109.47145 * 120.00303 * 2 1 3 34 34 H 1.08995 * 109.47066 * 300.00131 * 5 3 2 35 35 H 1.09001 * 109.46848 * 60.00491 * 5 3 2 36 36 H 1.09004 * 109.46735 * 180.02562 * 5 3 2 37 37 H 0.96996 * 119.99979 * 24.99553 * 6 3 2 38 38 H 1.09004 * 109.46947 * 60.69251 * 9 7 6 39 39 H 1.09007 * 109.47536 * 300.69623 * 9 7 6 40 40 H 1.09001 * 109.49403 * 52.78651 * 11 10 9 41 41 H 1.08996 * 109.48979 * 292.70417 * 11 10 9 42 42 H 1.09001 * 109.62706 * 173.53872 * 12 11 10 43 43 H 1.09001 * 109.63343 * 293.92436 * 12 11 10 44 44 H 0.97000 * 119.99900 * 354.90853 * 16 14 13 45 45 H 1.09004 * 109.47318 * 299.99475 * 17 16 14 46 46 H 1.09002 * 109.47613 * 59.99876 * 17 16 14 47 47 H 1.09002 * 109.47313 * 299.99368 * 18 17 16 48 48 H 1.08997 * 109.47325 * 60.00232 * 18 17 16 49 49 H 0.96999 * 119.99969 * 180.02562 * 22 21 19 50 50 H 1.08993 * 109.63075 * 170.89173 * 27 13 12 51 51 H 1.09001 * 109.62616 * 291.47843 * 27 13 12 52 52 H 1.08997 * 109.49040 * 67.29205 * 28 10 9 53 53 H 1.08999 * 109.49534 * 307.21268 * 28 10 9 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 6 0.0000 0.0000 0.0000 2 6 1.5300 0.0000 0.0000 3 6 2.0400 1.4425 0.0000 4 1 1.6053 1.9815 -0.8418 5 6 3.5649 1.4443 -0.1257 6 7 1.6525 2.0974 1.2519 7 6 1.5256 3.4384 1.2997 8 8 1.7327 4.1029 0.3065 9 6 1.1264 4.1121 2.5872 10 7 1.0419 5.5631 2.3749 11 6 -0.0138 5.8931 1.4081 12 6 -0.1921 7.4140 1.3508 13 7 1.1161 8.0277 1.0767 14 6 1.2656 8.9213 0.0788 15 8 0.3360 9.1603 -0.6675 16 7 2.4455 9.5499 -0.0917 17 6 2.6437 10.4364 -1.2410 18 6 4.0581 11.0185 -1.1981 19 6 4.2623 11.9300 -2.3808 20 1 3.4633 12.0788 -3.0921 21 6 5.4690 12.5738 -2.5547 22 7 5.6474 13.3688 -3.5871 23 14 6.8511 12.3158 -1.3248 24 1 7.6862 11.1649 -1.7527 25 1 7.6903 13.5392 -1.2594 26 1 6.2754 12.0383 0.0157 27 6 2.2571 7.6401 1.9200 28 6 2.3389 6.1102 1.9550 29 1 -0.3634 -1.0277 0.0005 30 1 -0.3633 0.5138 0.8901 31 1 -0.3634 0.5138 -0.8899 32 1 1.8933 -0.5138 -0.8901 33 1 1.8933 -0.5139 0.8900 34 1 3.9994 0.9053 0.7160 35 1 3.8531 0.9571 -1.0572 36 1 3.9282 2.4720 -0.1253 37 1 1.4871 1.5660 2.0463 38 1 1.8712 3.8998 3.3544 39 1 0.1557 3.7347 2.9090 40 1 -0.9497 5.4286 1.7189 41 1 0.2669 5.5223 0.4224 42 1 -0.8911 7.6709 0.5548 43 1 -0.5758 7.7740 2.3054 44 1 3.1633 9.4155 0.5466 45 1 2.5111 9.8708 -2.1633 46 1 1.9162 11.2473 -1.2043 47 1 4.1904 11.5843 -0.2759 48 1 4.7859 10.2079 -1.2347 49 1 6.4965 13.8215 -3.7096 50 1 3.1773 8.0464 1.5004 51 1 2.1119 8.0221 2.9305 52 1 2.5869 5.7364 0.9616 53 1 3.1093 5.8033 2.6623 RHF calculation, no. of doubly occupied orbitals= 66 REFERENCES FOR PARAMETERS IN GAS-PHASE HAMILTONIAN: H: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985) C: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985) N: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985) O: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985) Si: (AM1): M.J.S.DEWAR, C. JIE, ORGANOMETALLICS, 6, 1486-1490 (1987). REFERENCE FOR CHARGE MODEL 2: J. Li, J. Xing, C. J. Cramer, and D. G. Truhlar, J. Chem. Phys. 111 (1999) 885. REFERENCE FOR THE PARAMETERIZATION OF THE SM5.42R SOLVATION MODEL: J. Li, T. Zhu, G. D. Hawkins, P. Winget, D. A. Liotard, C. J. Cramer, and D. G. Truhlar, Theor. Chem. Acc. 103 (1999) 9-63 P. Winget, J. D. Thompson C. J. Cramer,and D. G. Truhlar, J. Phys. Chem. B. submitted. CHARGE=-1 AM1 1SCF TLIMIT=15 GEO-OK SM5.42R & SOLVNT=GENORG IOFR=1.4345 ALPHA=0.00 BETA=0.00 GAMMA=38.93 & DIELEC=2.06 FACARB=0.00 FEHALO=0.00 DEV ZINC000343983174.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sat Apr 11 2020 06:11:34 Heat of formation + Delta-G solvation = -56.560535 kcal Electronic energy + Delta-G solvation = -30559.219339 eV Core-core repulsion = 26466.097183 eV Total energy + Delta-G solvation = -4093.122156 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.69 seconds Orbital eigenvalues (eV) -40.88222 -39.82771 -38.04922 -36.61323 -34.94377 -34.39527 -32.91655 -32.71984 -31.26617 -30.51512 -29.95857 -28.70495 -25.65337 -24.61623 -24.13249 -23.66149 -21.84822 -21.17001 -20.91083 -20.69071 -19.32816 -18.03068 -17.43160 -16.86109 -16.73003 -16.09243 -15.59833 -15.43963 -15.26668 -15.14823 -14.88757 -14.36230 -14.30985 -14.21008 -14.04933 -13.88684 -13.81450 -13.59744 -13.15354 -12.86399 -12.64342 -12.49236 -12.41813 -12.23312 -12.11280 -11.86256 -11.62902 -11.53553 -11.31628 -11.20124 -11.17995 -11.14566 -11.13879 -10.70104 -10.32568 -10.16532 -9.90751 -9.62519 -9.46809 -9.26355 -8.79326 -8.57666 -8.42744 -8.11433 -6.05905 -4.05342 2.23227 2.76375 2.91026 3.28999 3.36206 3.38059 3.51277 3.66840 4.16542 4.27065 4.42375 4.42895 4.50138 4.54715 4.63071 4.76072 4.94463 4.95017 4.99534 5.06996 5.11715 5.15391 5.25103 5.27031 5.27653 5.37294 5.39583 5.42599 5.43792 5.57150 5.61193 5.70383 5.78152 5.82297 5.89945 6.02222 6.14426 6.20190 6.33497 6.51930 6.58764 6.66288 6.71745 6.92196 7.07570 7.14954 7.31870 7.36376 7.73450 7.85754 8.33761 8.51592 8.98219 9.01579 9.54405 11.07208 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.013009 B = 0.002293 C = 0.002119 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2151.828043 B =12208.391448 C =13210.869806 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.153 4.153 2 C -0.131 4.131 3 C 0.138 3.862 4 H 0.088 0.912 5 C -0.163 4.163 6 N -0.726 5.726 7 C 0.477 3.523 8 O -0.527 6.527 9 C 0.035 3.965 10 N -0.511 5.511 11 C 0.026 3.974 12 C 0.139 3.861 13 N -0.634 5.634 14 C 0.706 3.294 15 O -0.594 6.594 16 N -0.743 5.743 17 C 0.148 3.852 18 C -0.021 4.021 19 C -0.520 4.520 20 H 0.076 0.924 21 C 0.068 3.932 22 N -0.899 5.899 23 Si 0.882 3.118 24 H -0.277 1.277 25 H -0.287 1.287 26 H -0.266 1.266 27 C 0.119 3.881 28 C 0.023 3.977 29 H 0.056 0.944 30 H 0.054 0.946 31 H 0.056 0.944 32 H 0.078 0.922 33 H 0.067 0.933 34 H 0.055 0.945 35 H 0.065 0.935 36 H 0.061 0.939 37 H 0.398 0.602 38 H 0.106 0.894 39 H 0.105 0.895 40 H 0.078 0.922 41 H 0.069 0.931 42 H 0.095 0.905 43 H 0.066 0.934 44 H 0.390 0.610 45 H 0.058 0.942 46 H 0.061 0.939 47 H 0.021 0.979 48 H 0.016 0.984 49 H 0.264 0.736 50 H 0.082 0.918 51 H 0.071 0.929 52 H 0.077 0.923 53 H 0.078 0.922 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -8.675 -30.484 17.962 36.430 Note: The Mulliken population analysis charges presented below were not used in the solvation calculation but are provided for completeness. The chosen solvation model uses CM2 partial charges for calculating solvation energies. Net atomic charges, atomic populations, and dipole contributions using Mulliken population analysis Atom NO. Type Charge No. of electrons 1 C -0.210 4.210 2 C -0.169 4.169 3 C 0.033 3.967 4 H 0.106 0.894 5 C -0.222 4.222 6 N -0.379 5.379 7 C 0.262 3.738 8 O -0.403 6.403 9 C -0.097 4.097 10 N -0.233 5.233 11 C -0.102 4.102 12 C 0.015 3.985 13 N -0.373 5.373 14 C 0.407 3.593 15 O -0.473 6.473 16 N -0.398 5.398 17 C 0.025 3.975 18 C -0.059 4.059 19 C -0.558 4.558 20 H 0.094 0.906 21 C -0.134 4.134 22 N -0.538 5.538 23 Si 0.710 3.290 24 H -0.203 1.203 25 H -0.213 1.213 26 H -0.191 1.191 27 C -0.005 4.005 28 C -0.105 4.105 29 H 0.075 0.925 30 H 0.074 0.926 31 H 0.075 0.925 32 H 0.096 0.904 33 H 0.085 0.915 34 H 0.074 0.926 35 H 0.084 0.916 36 H 0.080 0.920 37 H 0.232 0.768 38 H 0.124 0.876 39 H 0.123 0.877 40 H 0.097 0.903 41 H 0.088 0.912 42 H 0.114 0.886 43 H 0.084 0.916 44 H 0.225 0.775 45 H 0.077 0.923 46 H 0.079 0.921 47 H 0.040 0.960 48 H 0.034 0.966 49 H 0.074 0.926 50 H 0.100 0.900 51 H 0.089 0.911 52 H 0.095 0.905 53 H 0.096 0.904 Dipole moment (debyes) X Y Z Total from point charges -9.196 -29.415 16.986 35.190 hybrid contribution 1.456 -0.928 0.559 1.815 sum -7.740 -30.343 17.544 35.895 Atomic orbital electron populations 1.21773 0.95239 1.01745 1.02271 1.21837 0.96601 0.95388 1.03058 1.21015 0.94989 0.93019 0.87672 0.89434 1.22170 0.95254 1.02768 1.01988 1.46316 1.70780 1.07280 1.13526 1.22312 0.76990 0.82450 0.92016 1.90707 1.49432 1.63168 1.37023 1.22362 1.04051 0.88862 0.94430 1.62385 1.06508 1.08099 1.46353 1.22739 0.94336 0.96742 0.96377 1.21420 0.84820 0.90532 1.01718 1.47244 1.10298 1.45186 1.34551 1.15906 0.83677 0.79118 0.80596 1.90877 1.40406 1.68722 1.47263 1.45641 1.13866 1.49772 1.30525 1.21366 0.99095 0.91373 0.85668 1.19796 0.91410 0.96245 0.98472 1.20929 1.00565 1.25876 1.08455 0.90577 1.25002 0.98404 0.94653 0.95311 1.69908 1.25130 1.29904 1.28829 0.86746 0.82233 0.77719 0.82344 1.20281 1.21311 1.19079 1.21637 0.89374 0.94165 0.95306 1.22767 0.90532 0.95013 1.02228 0.92504 0.92645 0.92504 0.90383 0.91452 0.92570 0.91611 0.91982 0.76818 0.87646 0.87699 0.90338 0.91242 0.88650 0.91607 0.77503 0.92330 0.92077 0.96033 0.96559 0.92616 0.90002 0.91078 0.90488 0.90354 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 13. Note: The number of geometries may not correspond to the number of cycles due to rejected geometry changes. In the following table subtotal= G_P + SS G_CDS. Atom Chem. CM2 G_P Area Sigma k SS G_CDS Subtotal M number symbol chg. (kcal) (Ang**2) cal/(Ang**2) (kcal) (kcal) value 1 C -0.15 -0.68 9.80 37.16 0.36 -0.32 16 2 C -0.13 -0.55 5.47 -26.73 -0.15 -0.70 16 3 C 0.14 0.89 2.57 -67.93 -0.17 0.72 16 4 H 0.09 0.81 7.58 -51.93 -0.39 0.41 16 5 C -0.16 -1.11 9.48 37.16 0.35 -0.76 16 6 N -0.73 -4.06 4.53 -53.80 -0.24 -4.30 16 7 C 0.48 3.97 7.21 -10.99 -0.08 3.89 16 8 O -0.53 -6.88 11.30 5.56 0.06 -6.82 16 9 C 0.04 0.21 5.83 -4.98 -0.03 0.19 16 10 N -0.51 -4.69 4.83 -235.77 -1.14 -5.83 16 11 C 0.03 0.29 5.19 -3.70 -0.02 0.27 16 12 C 0.14 1.77 6.61 -3.60 -0.02 1.75 16 13 N -0.63 -9.37 3.01 -178.19 -0.54 -9.91 16 14 C 0.71 13.45 8.31 -86.92 -0.72 12.73 16 15 O -0.59 -13.61 15.80 5.29 0.08 -13.52 16 16 N -0.74 -13.85 5.41 -65.23 -0.35 -14.20 16 17 C 0.15 3.27 5.62 -4.04 -0.02 3.24 16 18 C -0.02 -0.51 4.16 -27.88 -0.12 -0.63 16 19 C -0.52 -15.02 9.66 -34.44 -0.33 -15.35 16 20 H 0.08 2.38 7.99 -52.48 -0.42 1.96 16 21 C 0.07 1.99 5.47 -17.82 -0.10 1.89 16 22 N -0.90 -27.90 13.96 55.43 0.77 -27.13 16 23 Si 0.88 21.54 27.47 -169.99 -4.67 16.87 16 24 H -0.28 -6.64 7.11 56.52 0.40 -6.24 16 25 H -0.29 -6.96 7.11 56.52 0.40 -6.56 16 26 H -0.27 -6.15 6.54 56.52 0.37 -5.78 16 27 C 0.12 1.37 6.49 -3.60 -0.02 1.35 16 28 C 0.02 0.24 5.14 -3.70 -0.02 0.22 16 29 H 0.06 0.21 8.14 -51.93 -0.42 -0.21 16 30 H 0.05 0.23 7.75 -51.93 -0.40 -0.17 16 31 H 0.06 0.32 8.14 -51.93 -0.42 -0.10 16 32 H 0.08 0.31 8.14 -51.93 -0.42 -0.11 16 33 H 0.07 0.21 8.14 -51.93 -0.42 -0.21 16 34 H 0.06 0.32 8.14 -51.93 -0.42 -0.11 16 35 H 0.06 0.40 8.14 -51.93 -0.42 -0.02 16 36 H 0.06 0.58 8.14 -51.93 -0.42 0.16 16 37 H 0.40 1.08 8.60 -40.82 -0.35 0.73 16 38 H 0.11 0.44 8.13 -51.93 -0.42 0.02 16 39 H 0.10 0.43 8.09 -51.93 -0.42 0.01 16 40 H 0.08 0.67 8.07 -51.93 -0.42 0.25 16 41 H 0.07 0.97 5.87 -51.93 -0.30 0.67 16 42 H 0.10 1.38 7.04 -51.93 -0.37 1.02 16 43 H 0.07 0.74 8.14 -51.93 -0.42 0.32 16 44 H 0.39 6.20 6.12 -40.82 -0.25 5.95 16 45 H 0.06 1.37 8.14 -51.93 -0.42 0.95 16 46 H 0.06 1.42 8.14 -51.93 -0.42 1.00 16 47 H 0.02 0.50 7.20 -51.93 -0.37 0.13 16 48 H 0.02 0.38 7.57 -51.93 -0.39 -0.02 16 49 H 0.26 7.63 8.31 -40.82 -0.34 7.30 16 50 H 0.08 0.92 5.84 -51.93 -0.30 0.62 16 51 H 0.07 0.72 8.14 -51.93 -0.42 0.30 16 52 H 0.08 1.05 5.58 -51.93 -0.29 0.76 16 53 H 0.08 0.65 8.10 -51.93 -0.42 0.23 16 LS Contribution 411.51 15.07 6.20 6.20 Total: -1.00 -36.65 411.51 -10.26 -46.90 By element: Atomic # 1 Polarization: 12.59 SS G_CDS: -9.35 Total: 3.24 kcal Atomic # 6 Polarization: 9.58 SS G_CDS: -1.09 Total: 8.49 kcal Atomic # 7 Polarization: -59.87 SS G_CDS: -1.50 Total: -61.37 kcal Atomic # 8 Polarization: -20.48 SS G_CDS: 0.15 Total: -20.34 kcal Atomic # 14 Polarization: 21.54 SS G_CDS: -4.67 Total: 16.87 kcal Total LS contribution 6.20 Total: 6.20 kcal Total: -36.65 -10.26 -46.90 kcal The number of atoms in the molecule is 53 The average number of expansion shells was 16.00 The maximum number of expansion shells was 16 The minimum number of expansion shells was 16 **** NOTA BENE **** This is the net solvation energy for this exact molecular structure (nuclear and electronic)! The standard-state solvation energy should be obtained as the difference between the heat of formation plus delta-G solvation for the relaxed solvated system and that for the relaxed gas-phase system. ZINC000343983174.mol2 53 1SCF run This is a breakdown of the solvation energy calculated without geometric relaxation in solution: (1) E-EN(sol) electronic-nuclear energy of solute -9.660 kcal (2) G-P(sol) polarization free energy of solvation -36.646 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -46.305 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.255 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -46.901 kcal (6) G-S(sol) free energy of system = (1) + (5) -56.561 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.69 seconds