Wall clock time and date at job start Tue Mar 31 2020 21:03:34 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 O 1.42903 * 1 3 3 C 1.42907 * 113.99577 * 2 1 4 4 C 1.53008 * 109.46639 * 180.02562 * 3 2 1 5 5 C 1.52997 * 109.46508 * 183.43439 * 4 3 2 6 6 N 1.46498 * 109.46034 * 294.86594 * 5 4 3 7 7 C 1.34775 * 120.00168 * 296.93085 * 6 5 4 8 8 O 1.21616 * 119.99983 * 4.17043 * 7 6 5 9 9 C 1.47106 * 119.99824 * 184.18008 * 7 6 5 10 10 C 1.32998 * 119.99727 * 176.87188 * 9 7 6 11 11 C 1.50694 * 119.99952 * 172.29410 * 10 9 7 12 12 C 1.50705 * 119.99870 * 352.29597 * 10 9 7 13 13 C 1.53001 * 117.49474 * 179.89853 * 12 10 9 14 14 C 1.52997 * 117.49917 * 111.27773 * 12 10 9 15 15 C 1.53032 * 109.45505 * 54.83773 * 5 4 3 16 16 C 1.53194 * 109.31847 * 181.37710 * 15 5 4 17 17 N 1.46924 * 108.77388 * 305.36197 * 16 15 5 18 18 C 1.36937 * 120.63295 * 233.58347 * 17 16 15 19 19 H 1.08002 * 119.99835 * 32.87365 * 18 17 16 20 20 C 1.38809 * 119.99920 * 212.87081 * 18 17 16 21 21 N 1.31614 * 120.00002 * 8.52810 * 20 18 17 22 22 Si 1.86801 * 119.99655 * 188.52751 * 20 18 17 23 23 H 1.48499 * 109.47394 * 60.00327 * 22 20 18 24 24 H 1.48504 * 109.46966 * 180.02562 * 22 20 18 25 25 H 1.48507 * 109.47135 * 300.00019 * 22 20 18 26 26 C 1.46935 * 118.73654 * 53.60682 * 17 16 15 27 27 C 1.53045 * 109.45873 * 174.89533 * 5 4 3 28 28 H 1.08996 * 109.46632 * 180.02562 * 1 2 3 29 29 H 1.08997 * 109.46927 * 300.00080 * 1 2 3 30 30 H 1.09001 * 109.47101 * 59.99865 * 1 2 3 31 31 H 1.08993 * 109.47432 * 60.00017 * 3 2 1 32 32 H 1.08999 * 109.47355 * 299.99465 * 3 2 1 33 33 H 1.08996 * 109.47205 * 63.43424 * 4 3 2 34 34 H 1.08998 * 109.46624 * 303.42808 * 4 3 2 35 35 H 0.96997 * 119.99921 * 116.93160 * 6 5 4 36 36 H 1.07999 * 120.00060 * 356.59318 * 9 7 6 37 37 H 1.09000 * 109.47344 * 89.99896 * 11 10 9 38 38 H 1.09001 * 109.47345 * 210.00127 * 11 10 9 39 39 H 1.09001 * 109.47337 * 329.99936 * 11 10 9 40 40 H 1.08998 * 115.54863 * 325.59932 * 12 10 9 41 41 H 1.08994 * 117.50235 * 359.97438 * 13 12 10 42 42 H 1.09000 * 117.49791 * 145.02205 * 13 12 10 43 43 H 1.09008 * 117.49746 * 214.97672 * 14 12 10 44 44 H 1.09001 * 117.49747 * 359.96817 * 14 12 10 45 45 H 1.09005 * 109.49756 * 301.32473 * 15 5 4 46 46 H 1.08997 * 109.50383 * 61.42386 * 15 5 4 47 47 H 1.09001 * 109.59020 * 185.57398 * 16 15 5 48 48 H 1.09004 * 109.58461 * 65.14624 * 16 15 5 49 49 H 0.97001 * 119.99696 * 179.97438 * 21 20 18 50 50 H 1.08996 * 109.58319 * 186.60667 * 26 17 16 51 51 H 1.08995 * 109.58672 * 66.17872 * 26 17 16 52 52 H 1.08998 * 109.49889 * 298.57921 * 27 5 4 53 53 H 1.09008 * 109.49304 * 58.67453 * 27 5 4 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 8 1.4290 0.0000 0.0000 3 6 2.0102 1.3056 0.0000 4 6 3.5355 1.1847 -0.0006 5 6 4.1575 2.5799 0.0858 6 7 3.8307 3.3359 -1.1258 7 6 4.2752 2.9116 -2.3253 8 8 4.8827 1.8616 -2.4120 9 6 4.0256 3.7187 -3.5296 10 6 4.5176 3.3317 -4.7031 11 6 4.1209 4.0575 -5.9627 12 6 5.4718 2.1673 -4.7731 13 6 6.0008 1.7695 -6.1525 14 6 4.9737 0.8850 -5.4428 15 6 3.6004 3.3114 1.3090 16 6 4.1990 4.7201 1.3732 17 7 5.6641 4.6128 1.3499 18 6 6.4231 5.2105 2.3205 19 1 6.0433 5.2937 3.3281 20 6 7.6805 5.7093 2.0092 21 7 8.0759 5.7611 0.7550 22 14 8.8113 6.3070 3.3707 23 1 9.0906 5.1900 4.3084 24 1 10.0859 6.7883 2.7798 25 1 8.1562 7.4186 4.1060 26 6 6.2996 3.8524 0.2650 27 6 5.6774 2.4535 0.2134 28 1 -0.3632 -1.0277 0.0005 29 1 -0.3633 0.5138 0.8900 30 1 -0.3633 0.5139 -0.8900 31 1 1.6886 1.8465 0.8899 32 1 1.6886 1.8464 -0.8900 33 1 3.8610 0.6981 -0.9200 34 1 3.8532 0.5915 0.8568 35 1 3.2943 4.1418 -1.0647 36 1 3.4392 4.6230 -3.4617 37 1 4.8181 4.8751 -6.1459 38 1 4.1442 3.3648 -6.8040 39 1 3.1134 4.4578 -5.8495 40 1 6.1481 2.0622 -3.9248 41 1 5.6584 2.3496 -7.0094 42 1 7.0254 1.4024 -6.2119 43 1 5.3227 -0.0639 -5.0352 44 1 3.9557 0.8834 -5.8323 45 1 2.5155 3.3806 1.2287 46 1 3.8645 2.7625 2.2129 47 1 3.8831 5.2098 2.2944 48 1 3.8614 5.3001 0.5143 49 1 8.9545 6.1101 0.5375 50 1 7.3696 3.7695 0.4551 51 1 6.1333 4.3616 -0.6842 52 1 5.9220 1.9125 1.1275 53 1 6.0708 1.9118 -0.6469 RHF calculation, no. of doubly occupied orbitals= 65 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 ZINC001150977311.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 21:03:34 Heat of formation + Delta-G solvation = -17.050706 kcal Electronic energy + Delta-G solvation = -31355.454198 eV Core-core repulsion = 27422.208617 eV Total energy + Delta-G solvation = -3933.245581 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.220 amu Computer time = 1.21 seconds Orbital eigenvalues (eV) -40.27583 -38.47125 -37.58458 -36.81185 -34.47090 -33.32150 -31.91513 -31.39080 -30.09714 -28.83294 -27.86209 -26.49977 -24.81021 -23.48634 -23.17850 -22.26490 -21.99491 -21.04341 -20.25059 -18.67161 -18.38096 -16.99053 -16.75550 -16.33396 -15.91467 -15.56858 -14.99128 -14.87446 -14.70718 -14.39319 -14.19011 -13.81911 -13.56458 -13.35714 -13.17393 -13.05016 -13.02864 -12.78199 -12.55882 -12.31916 -12.23138 -11.61864 -11.53285 -11.41125 -11.36588 -11.20084 -11.02579 -11.01015 -10.81962 -10.69173 -10.63662 -10.37767 -10.23549 -10.20289 -9.95138 -9.68545 -9.59067 -9.39223 -8.89097 -8.72747 -8.44064 -8.39285 -6.55443 -5.75208 -3.25527 1.51686 3.38830 3.44425 3.45078 3.57858 3.73666 3.83525 4.08286 4.50106 4.62338 4.85453 5.05495 5.09304 5.12691 5.19085 5.21145 5.26775 5.35095 5.38392 5.40120 5.45516 5.48837 5.50891 5.55429 5.58414 5.62522 5.65852 5.68744 5.78889 5.84107 5.94819 6.05830 6.18039 6.18851 6.25481 6.36570 6.42022 6.45850 6.47797 6.57732 6.69172 6.70221 6.77582 6.88583 6.97084 7.17651 7.23553 7.48150 7.77631 7.82500 8.05503 8.51833 8.74958 9.26007 9.86764 10.45776 11.31961 Molecular weight = 336.22amu Principal moments of inertia in cm(-1) A = 0.008646 B = 0.004280 C = 0.003139 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3237.884269 B = 6541.241841 C = 8918.016141 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.033 3.967 2 O -0.393 6.393 3 C 0.064 3.936 4 C -0.128 4.128 5 C 0.197 3.803 6 N -0.710 5.710 7 C 0.550 3.450 8 O -0.534 6.534 9 C -0.219 4.219 10 C -0.013 4.013 11 C -0.127 4.127 12 C -0.109 4.109 13 C -0.193 4.193 14 C -0.156 4.156 15 C -0.142 4.142 16 C 0.147 3.853 17 N -0.590 5.590 18 C -0.256 4.256 19 H 0.062 0.938 20 C 0.008 3.992 21 N -0.902 5.902 22 Si 0.903 3.097 23 H -0.283 1.283 24 H -0.290 1.290 25 H -0.283 1.283 26 C 0.181 3.819 27 C -0.150 4.150 28 H 0.081 0.919 29 H 0.038 0.962 30 H 0.037 0.963 31 H 0.050 0.950 32 H 0.044 0.956 33 H 0.090 0.910 34 H 0.072 0.928 35 H 0.395 0.605 36 H 0.123 0.877 37 H 0.077 0.923 38 H 0.071 0.929 39 H 0.068 0.932 40 H 0.137 0.863 41 H 0.092 0.908 42 H 0.094 0.906 43 H 0.095 0.905 44 H 0.087 0.913 45 H 0.056 0.944 46 H 0.075 0.925 47 H 0.054 0.946 48 H 0.014 0.986 49 H 0.254 0.746 50 H 0.084 0.916 51 H 0.017 0.983 52 H 0.058 0.942 53 H 0.073 0.927 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -13.149 -6.559 -10.575 18.104 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 -0.064 4.064 2 O -0.312 6.312 3 C -0.012 4.012 4 C -0.167 4.167 5 C 0.111 3.889 6 N -0.361 5.361 7 C 0.339 3.661 8 O -0.413 6.413 9 C -0.240 4.240 10 C -0.014 4.014 11 C -0.183 4.183 12 C -0.127 4.127 13 C -0.230 4.230 14 C -0.193 4.193 15 C -0.182 4.182 16 C 0.020 3.980 17 N -0.313 5.313 18 C -0.386 4.386 19 H 0.079 0.921 20 C -0.191 4.191 21 N -0.546 5.546 22 Si 0.733 3.267 23 H -0.210 1.210 24 H -0.216 1.216 25 H -0.209 1.209 26 C 0.055 3.945 27 C -0.190 4.190 28 H 0.100 0.900 29 H 0.057 0.943 30 H 0.056 0.944 31 H 0.068 0.932 32 H 0.062 0.938 33 H 0.109 0.891 34 H 0.090 0.910 35 H 0.230 0.770 36 H 0.141 0.859 37 H 0.096 0.904 38 H 0.089 0.911 39 H 0.087 0.913 40 H 0.154 0.846 41 H 0.111 0.889 42 H 0.112 0.888 43 H 0.113 0.887 44 H 0.105 0.895 45 H 0.074 0.926 46 H 0.093 0.907 47 H 0.072 0.928 48 H 0.032 0.968 49 H 0.064 0.936 50 H 0.102 0.898 51 H 0.036 0.964 52 H 0.077 0.923 53 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges -12.421 -7.381 -10.664 17.957 hybrid contribution 0.051 1.161 0.788 1.404 sum -12.369 -6.219 -9.876 17.006 Atomic orbital electron populations 1.22682 0.81755 1.02281 0.99679 1.87885 1.19103 1.28883 1.95372 1.22671 0.94887 0.83901 0.99746 1.21987 0.92123 0.97987 1.04559 1.20133 0.96238 0.88980 0.83553 1.45980 1.54763 1.29111 1.06221 1.18348 0.78774 0.85583 0.83359 1.90665 1.40842 1.23747 1.86070 1.22428 1.06997 1.01627 0.92937 1.21715 0.91929 0.93561 0.94233 1.20986 1.01772 1.00290 0.95253 1.21442 1.00976 0.93663 0.96590 1.23125 0.99263 1.04561 0.96083 1.22749 0.98564 0.94796 1.03188 1.22439 0.98512 1.00040 0.97183 1.20863 0.86484 0.92090 0.98546 1.43994 0.99215 1.58852 1.29238 1.19101 0.98546 1.31657 0.89282 0.92076 1.25194 0.99646 0.98500 0.95806 1.69961 1.19834 1.48937 1.15890 0.86372 0.80141 0.78779 0.81409 1.20970 1.21630 1.20919 1.20680 0.98002 0.85997 0.89778 1.22584 0.92898 1.01977 1.01551 0.90017 0.94312 0.94444 0.93183 0.93816 0.89133 0.90968 0.77049 0.85925 0.90403 0.91054 0.91258 0.84596 0.88922 0.88799 0.88686 0.89460 0.92581 0.90680 0.92751 0.96803 0.93601 0.89808 0.96439 0.92322 0.90820 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 0.03 0.34 11.01 101.05 1.11 1.45 16 2 O -0.39 -5.67 10.70 -35.23 -0.38 -6.05 16 3 C 0.06 0.89 5.41 37.16 0.20 1.09 16 4 C -0.13 -2.03 4.56 -26.73 -0.12 -2.15 16 5 C 0.20 3.28 0.36 -131.78 -0.05 3.23 16 6 N -0.71 -10.99 3.58 -48.74 -0.17 -11.16 16 7 C 0.55 8.89 7.00 -12.66 -0.09 8.81 16 8 O -0.53 -9.73 9.50 5.26 0.05 -9.68 16 9 C -0.22 -2.98 9.62 -37.80 -0.36 -3.34 16 10 C -0.01 -0.16 5.80 -101.17 -0.59 -0.75 16 11 C -0.13 -1.17 9.53 36.00 0.34 -0.82 16 12 C -0.11 -1.48 4.29 -91.77 -0.39 -1.88 16 13 C -0.19 -2.12 9.80 -26.73 -0.26 -2.38 16 14 C -0.16 -1.86 10.23 -26.73 -0.27 -2.14 16 15 C -0.14 -2.31 4.50 -26.61 -0.12 -2.43 16 16 C 0.15 2.89 6.24 -3.71 -0.02 2.87 16 17 N -0.59 -14.42 2.98 -172.32 -0.51 -14.94 16 18 C -0.26 -6.95 9.57 -15.06 -0.14 -7.10 16 19 H 0.06 1.63 7.84 -52.49 -0.41 1.22 16 20 C 0.01 0.21 5.09 -17.43 -0.09 0.12 16 21 N -0.90 -26.20 11.04 55.49 0.61 -25.59 16 22 Si 0.90 21.71 29.56 -169.99 -5.03 16.68 16 23 H -0.28 -6.76 7.11 56.52 0.40 -6.35 16 24 H -0.29 -7.05 7.11 56.52 0.40 -6.65 16 25 H -0.28 -6.70 7.11 56.52 0.40 -6.30 16 26 C 0.18 4.36 4.98 -3.71 -0.02 4.34 16 27 C -0.15 -3.04 4.62 -26.61 -0.12 -3.16 16 28 H 0.08 0.71 8.14 -51.93 -0.42 0.29 16 29 H 0.04 0.36 8.14 -51.93 -0.42 -0.07 16 30 H 0.04 0.35 8.14 -51.93 -0.42 -0.07 16 31 H 0.05 0.64 6.11 -51.93 -0.32 0.33 16 32 H 0.04 0.59 7.85 -51.93 -0.41 0.18 16 33 H 0.09 1.62 6.13 -51.93 -0.32 1.30 16 34 H 0.07 1.16 8.14 -51.93 -0.42 0.74 16 35 H 0.40 5.48 7.35 -40.82 -0.30 5.18 16 36 H 0.12 1.39 8.06 -52.49 -0.42 0.97 16 37 H 0.08 0.68 8.14 -51.93 -0.42 0.26 16 38 H 0.07 0.58 6.29 -51.93 -0.33 0.25 16 39 H 0.07 0.55 8.07 -51.93 -0.42 0.13 16 40 H 0.14 2.27 6.31 -51.93 -0.33 1.95 16 41 H 0.09 0.86 6.26 -51.93 -0.33 0.54 16 42 H 0.09 0.99 8.14 -51.93 -0.42 0.56 16 43 H 0.09 1.16 8.14 -51.92 -0.42 0.74 16 44 H 0.09 0.96 8.14 -51.93 -0.42 0.54 16 45 H 0.06 0.76 6.19 -51.93 -0.32 0.44 16 46 H 0.07 1.28 8.14 -51.93 -0.42 0.86 16 47 H 0.05 1.06 7.93 -51.93 -0.41 0.65 16 48 H 0.01 0.27 7.00 -51.93 -0.36 -0.09 16 49 H 0.25 7.19 8.31 -40.82 -0.34 6.85 16 50 H 0.08 2.33 6.15 -51.93 -0.32 2.01 16 51 H 0.02 0.45 7.64 -51.93 -0.40 0.05 16 52 H 0.06 1.21 8.14 -51.93 -0.42 0.79 16 53 H 0.07 1.55 6.13 -51.92 -0.32 1.23 16 LS Contribution 402.36 15.07 6.06 6.06 Total: -1.00 -30.96 402.36 -9.43 -40.39 By element: Atomic # 1 Polarization: 17.59 SS G_CDS: -9.07 Total: 8.52 kcal Atomic # 6 Polarization: -3.24 SS G_CDS: -1.00 Total: -4.24 kcal Atomic # 7 Polarization: -51.61 SS G_CDS: -0.08 Total: -51.69 kcal Atomic # 8 Polarization: -15.40 SS G_CDS: -0.33 Total: -15.73 kcal Atomic # 14 Polarization: 21.71 SS G_CDS: -5.03 Total: 16.68 kcal Total LS contribution 6.06 Total: 6.06 kcal Total: -30.96 -9.43 -40.39 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. ZINC001150977311.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 23.344 kcal (2) G-P(sol) polarization free energy of solvation -30.962 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -7.617 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.433 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.395 kcal (6) G-S(sol) free energy of system = (1) + (5) -17.051 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.21 seconds