Wall clock time and date at job start Sat Apr 11 2020 06:10:43 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 1.42898 * 1 3 3 C 1.42901 * 113.99885 * 2 1 4 4 C 1.53004 * 108.79527 * 53.39786 * 3 2 1 5 5 N 1.46497 * 109.47078 * 60.24862 * 4 3 2 6 6 C 1.34779 * 119.99928 * 174.67980 * 5 4 3 7 7 O 1.21585 * 119.99779 * 359.97438 * 6 5 4 8 8 N 1.34775 * 120.00080 * 179.97438 * 6 5 4 9 9 C 1.47430 * 125.64840 * 359.68628 * 8 6 5 10 10 C 1.55131 * 104.72378 * 155.81548 * 9 8 6 11 11 C 1.55164 * 101.48174 * 37.30079 * 10 9 8 12 12 O 1.42895 * 110.72269 * 82.69588 * 11 10 9 13 13 C 1.50702 * 110.86878 * 205.90163 * 11 10 9 14 14 H 1.08000 * 120.00231 * 355.06005 * 13 11 10 15 15 C 1.37881 * 119.99673 * 175.06788 * 13 11 10 16 16 N 1.31508 * 120.00201 * 359.97438 * 15 13 11 17 17 Si 1.86804 * 119.99755 * 179.97438 * 15 13 11 18 18 H 1.48497 * 109.47145 * 359.97438 * 17 15 13 19 19 H 1.48495 * 109.47245 * 119.99665 * 17 15 13 20 20 H 1.48500 * 109.46691 * 239.99409 * 17 15 13 21 21 C 1.47023 * 125.65142 * 179.97438 * 8 6 5 22 22 C 1.54245 * 108.89606 * 171.95391 * 3 2 1 23 23 C 1.50479 * 108.52375 * 40.77076 * 22 3 2 24 24 C 1.54061 * 112.49721 * 94.14961 * 23 22 3 25 25 C 1.54062 * 112.81836 * 318.28320 * 24 23 22 26 26 C 1.50467 * 112.49656 * 318.28577 * 25 24 23 27 27 C 1.45545 * 108.89597 * 294.83749 * 3 2 1 28 28 H 1.09000 * 109.47511 * 174.69521 * 1 2 3 29 29 H 1.08999 * 109.47095 * 294.69849 * 1 2 3 30 30 H 1.09003 * 109.47012 * 54.69416 * 1 2 3 31 31 H 1.08995 * 109.47242 * 180.25203 * 4 3 2 32 32 H 1.08998 * 109.46497 * 300.25178 * 4 3 2 33 33 H 0.97000 * 120.00383 * 354.67360 * 5 4 3 34 34 H 1.08994 * 110.36690 * 274.75147 * 9 8 6 35 35 H 1.09007 * 110.36076 * 37.07283 * 9 8 6 36 36 H 1.09001 * 111.19345 * 279.19851 * 10 9 8 37 37 H 1.08994 * 110.90698 * 155.27581 * 10 9 8 38 38 H 0.96701 * 113.99879 * 185.02544 * 12 11 10 39 39 H 0.97003 * 120.00545 * 179.97438 * 16 15 13 40 40 H 1.09007 * 109.87760 * 300.44066 * 21 8 6 41 41 H 1.08993 * 109.88236 * 61.44377 * 21 8 6 42 42 H 1.08997 * 109.63124 * 160.48175 * 22 3 2 43 43 H 1.09003 * 109.62625 * 281.06124 * 22 3 2 44 44 H 1.09004 * 108.87226 * 333.37172 * 23 22 3 45 45 H 1.08994 * 108.87208 * 214.93028 * 23 22 3 46 46 H 1.09000 * 108.81029 * 197.42036 * 24 23 22 47 47 H 1.09002 * 108.81112 * 79.14789 * 24 23 22 48 48 H 1.09005 * 108.87931 * 197.50870 * 25 24 23 49 49 H 1.09000 * 108.87586 * 79.06697 * 25 24 23 50 50 H 1.08996 * 109.63103 * 334.44336 * 26 25 24 51 51 H 1.09000 * 109.78997 * 213.95744 * 26 25 24 52 52 H 1.08994 * 108.89543 * 61.94086 * 27 3 2 53 53 H 1.09002 * 108.89376 * 180.42770 * 27 3 2 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 1.3055 0.0000 4 6 1.4217 2.1071 1.1628 5 7 1.7291 1.4322 2.4262 6 6 1.4022 2.0132 3.5975 7 8 0.8526 3.0977 3.6056 8 7 1.6846 1.3921 4.7598 9 6 2.3392 0.0780 4.8949 10 6 2.9808 0.1004 6.3072 11 6 1.9103 0.8752 7.1204 12 8 0.8613 -0.0003 7.5386 13 6 2.5326 1.5638 8.3078 14 1 3.5770 1.4094 8.5354 15 6 1.7685 2.3908 9.1036 16 7 0.4969 2.5791 8.8263 17 14 2.5397 3.2437 10.5758 18 1 3.9734 2.8687 10.6702 19 1 2.4222 4.7151 10.4130 20 1 1.8363 2.8250 11.8148 21 6 1.3855 1.9100 6.1029 22 6 3.5334 1.1741 0.2043 23 6 4.0254 0.0055 -0.6060 24 6 4.5367 0.4262 -1.9971 25 6 3.6380 1.4811 -2.6701 26 6 2.1731 1.1928 -2.4838 27 6 1.6735 1.9713 -1.2496 28 1 -0.3634 -1.0232 -0.0950 29 1 -0.3633 0.4294 0.9336 30 1 -0.3633 0.5940 -0.8387 31 1 1.8546 3.1073 1.1705 32 1 0.3407 2.1799 1.0435 33 1 2.1679 0.5671 2.4197 34 1 1.6024 -0.7220 4.8230 35 1 3.1078 -0.0431 4.1315 36 1 3.9299 0.6364 6.3003 37 1 3.1078 -0.9111 6.6927 38 1 0.1292 0.4476 7.9841 39 1 -0.0408 3.1606 9.3863 40 1 1.8888 2.8654 6.2523 41 1 0.3093 2.0359 6.2205 42 1 4.0278 2.0860 -0.1307 43 1 3.7480 1.0044 1.2594 44 1 3.2089 -0.7058 -0.7307 45 1 4.8361 -0.4824 -0.0649 46 1 4.5828 -0.4556 -2.6361 47 1 5.5418 0.8352 -1.8932 48 1 3.8599 1.5046 -3.7371 49 1 3.8621 2.4590 -2.2438 50 1 2.0274 0.1241 -2.3262 51 1 1.6190 1.5115 -3.3667 52 1 0.5905 2.0763 -1.3130 53 1 2.1232 2.9643 -1.2528 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 ZINC000898936991.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 06:10:43 Heat of formation + Delta-G solvation = -128.115768 kcal Electronic energy + Delta-G solvation = -32060.835680 eV Core-core repulsion = 27932.317904 eV Total energy + Delta-G solvation = -4128.517775 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.63 seconds Orbital eigenvalues (eV) -40.89374 -39.38316 -37.35397 -36.50116 -34.30290 -34.20579 -32.50815 -32.20503 -31.70798 -29.93334 -27.89013 -27.15521 -26.69477 -25.15470 -24.68822 -23.14350 -22.28885 -20.29308 -19.68980 -19.48770 -19.27695 -17.71652 -17.05888 -16.79547 -16.17562 -15.82992 -15.52961 -15.38513 -15.17229 -14.84726 -14.52577 -14.28699 -13.83117 -13.59352 -13.44173 -13.29931 -13.12068 -12.91654 -12.81491 -12.75403 -12.35596 -12.34036 -12.06146 -11.95930 -11.63872 -11.39215 -11.26515 -11.10208 -11.04299 -10.80638 -10.77400 -10.68874 -10.64168 -10.45076 -10.43523 -10.28858 -10.15008 -9.72020 -9.56680 -9.29575 -8.80191 -8.66474 -8.29083 -7.72240 -6.26118 -4.34489 3.08320 3.22181 3.30599 3.34005 3.59851 3.76902 4.28206 4.30476 4.36891 4.51303 4.57578 4.74778 4.85622 4.97543 5.01813 5.05470 5.06759 5.12201 5.29559 5.32196 5.40629 5.46150 5.51619 5.57019 5.60495 5.65691 5.71081 5.74863 5.78863 5.81767 5.87476 5.93460 5.96477 6.03860 6.04794 6.05900 6.13120 6.16609 6.39017 6.53490 6.74510 6.76359 6.91618 7.01984 7.04815 7.29142 7.34987 7.68287 7.75446 8.06376 8.56399 8.69800 9.16028 9.31755 9.40360 10.81692 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.022260 B = 0.002545 C = 0.002513 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1257.570852 B =10999.041975 C =11137.793732 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.022 3.978 2 O -0.372 6.372 3 C 0.114 3.886 4 C 0.113 3.887 5 N -0.744 5.744 6 C 0.714 3.286 7 O -0.600 6.600 8 N -0.630 5.630 9 C 0.104 3.896 10 C -0.115 4.115 11 C 0.248 3.752 12 O -0.585 6.585 13 C -0.536 4.536 14 H 0.067 0.933 15 C 0.070 3.930 16 N -0.893 5.893 17 Si 0.903 3.097 18 H -0.272 1.272 19 H -0.282 1.282 20 H -0.282 1.282 21 C 0.124 3.876 22 C -0.101 4.101 23 C -0.123 4.123 24 C -0.115 4.115 25 C -0.119 4.119 26 C -0.110 4.110 27 C -0.145 4.145 28 H 0.084 0.916 29 H 0.048 0.952 30 H 0.043 0.957 31 H 0.073 0.927 32 H 0.064 0.936 33 H 0.397 0.603 34 H 0.061 0.939 35 H 0.055 0.945 36 H 0.076 0.924 37 H 0.075 0.925 38 H 0.382 0.618 39 H 0.269 0.731 40 H 0.063 0.937 41 H 0.062 0.938 42 H 0.076 0.924 43 H 0.073 0.927 44 H 0.084 0.916 45 H 0.057 0.943 46 H 0.056 0.944 47 H 0.055 0.945 48 H 0.056 0.944 49 H 0.059 0.941 50 H 0.076 0.924 51 H 0.060 0.940 52 H 0.067 0.933 53 H 0.075 0.925 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.221 -5.145 -22.122 23.102 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 -0.075 4.075 2 O -0.292 6.292 3 C 0.075 3.925 4 C -0.013 4.013 5 N -0.403 5.403 6 C 0.416 3.584 7 O -0.479 6.479 8 N -0.367 5.367 9 C -0.019 4.019 10 C -0.153 4.153 11 C 0.207 3.793 12 O -0.394 6.394 13 C -0.574 4.574 14 H 0.085 0.915 15 C -0.133 4.133 16 N -0.532 5.532 17 Si 0.730 3.270 18 H -0.196 1.196 19 H -0.208 1.208 20 H -0.208 1.208 21 C 0.001 3.999 22 C -0.138 4.138 23 C -0.160 4.160 24 C -0.153 4.153 25 C -0.157 4.157 26 C -0.148 4.148 27 C -0.183 4.183 28 H 0.102 0.898 29 H 0.066 0.934 30 H 0.062 0.938 31 H 0.091 0.909 32 H 0.082 0.918 33 H 0.233 0.767 34 H 0.080 0.920 35 H 0.073 0.927 36 H 0.095 0.905 37 H 0.093 0.907 38 H 0.232 0.768 39 H 0.079 0.921 40 H 0.082 0.918 41 H 0.080 0.920 42 H 0.095 0.905 43 H 0.091 0.909 44 H 0.102 0.898 45 H 0.076 0.924 46 H 0.075 0.925 47 H 0.074 0.926 48 H 0.074 0.926 49 H 0.078 0.922 50 H 0.095 0.905 51 H 0.079 0.921 52 H 0.086 0.914 53 H 0.093 0.907 Dipole moment (debyes) X Y Z Total from point charges 4.129 -4.807 -22.371 23.251 hybrid contribution -0.154 0.908 1.046 1.394 sum 3.975 -3.898 -21.325 22.040 Atomic orbital electron populations 1.22825 0.81529 1.02551 1.00561 1.87932 1.19372 1.26887 1.94966 1.20434 0.94909 0.83718 0.93462 1.21799 1.00316 0.96579 0.82585 1.45010 1.66943 1.24322 1.03998 1.15528 0.79633 0.83595 0.79631 1.90880 1.49346 1.21431 1.86227 1.47953 1.62260 1.20726 1.05741 1.22268 0.95583 0.85654 0.98410 1.22756 0.98540 1.01316 0.92731 1.19515 0.84296 0.85179 0.90298 1.86104 1.34285 1.39239 1.79740 1.21526 0.97139 1.27701 1.11061 0.91526 1.25077 0.94922 0.95548 0.97784 1.69707 1.06230 1.38083 1.39169 0.86357 0.79500 0.79160 0.81935 1.19607 1.20800 1.20770 1.22846 1.00739 0.98865 0.77409 1.21374 0.91434 0.99962 1.01077 1.21236 1.01427 0.98601 0.94730 1.21906 0.98569 0.98553 0.96268 1.21348 0.95042 0.99277 1.00010 1.21193 0.95632 1.01563 0.96388 1.21033 1.02091 1.00212 0.94940 0.89790 0.93358 0.93833 0.90869 0.91827 0.76730 0.92028 0.92697 0.90504 0.90650 0.76792 0.92089 0.91837 0.91965 0.90514 0.90860 0.89765 0.92390 0.92503 0.92636 0.92560 0.92188 0.90505 0.92119 0.91417 0.90684 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 12. 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 0.02 0.20 10.00 101.05 1.01 1.21 16 2 O -0.37 -3.79 7.07 -35.23 -0.25 -4.04 16 3 C 0.11 1.11 0.34 -93.48 -0.03 1.08 16 4 C 0.11 1.45 3.88 -4.04 -0.02 1.43 16 5 N -0.74 -11.30 4.77 -65.23 -0.31 -11.61 16 6 C 0.71 14.62 8.49 -86.92 -0.74 13.89 16 7 O -0.60 -14.65 16.66 5.29 0.09 -14.56 16 8 N -0.63 -13.20 3.33 -176.09 -0.59 -13.78 16 9 C 0.10 1.84 6.58 -2.41 -0.02 1.83 16 10 C -0.12 -2.30 6.24 -24.46 -0.15 -2.45 16 11 C 0.25 6.00 0.85 -89.93 -0.08 5.92 16 12 O -0.58 -14.71 13.07 -35.23 -0.46 -15.17 16 13 C -0.54 -14.05 8.13 -34.44 -0.28 -14.33 16 14 H 0.07 1.72 7.78 -52.49 -0.41 1.31 16 15 C 0.07 1.84 5.28 -17.82 -0.09 1.74 16 16 N -0.89 -23.98 10.96 55.43 0.61 -23.38 16 17 Si 0.90 20.59 29.54 -169.99 -5.02 15.57 16 18 H -0.27 -6.11 7.11 56.52 0.40 -5.71 16 19 H -0.28 -6.47 7.11 56.52 0.40 -6.07 16 20 H -0.28 -6.39 7.11 56.52 0.40 -5.99 16 21 C 0.12 3.04 5.23 -3.06 -0.02 3.03 16 22 C -0.10 -0.95 4.76 -27.34 -0.13 -1.08 16 23 C -0.12 -1.04 5.24 -27.44 -0.14 -1.19 16 24 C -0.12 -0.85 5.85 -25.62 -0.15 -1.00 16 25 C -0.12 -0.84 5.31 -27.44 -0.15 -0.98 16 26 C -0.11 -0.81 5.57 -27.35 -0.15 -0.96 16 27 C -0.14 -1.19 3.71 -29.60 -0.11 -1.30 16 28 H 0.08 0.68 8.14 -51.93 -0.42 0.26 16 29 H 0.05 0.54 6.59 -51.93 -0.34 0.19 16 30 H 0.04 0.35 6.29 -51.93 -0.33 0.02 16 31 H 0.07 1.00 8.13 -51.93 -0.42 0.58 16 32 H 0.06 0.86 6.50 -51.93 -0.34 0.52 16 33 H 0.40 5.40 5.79 -40.82 -0.24 5.16 16 34 H 0.06 1.07 8.14 -51.93 -0.42 0.65 16 35 H 0.05 0.79 7.29 -51.93 -0.38 0.41 16 36 H 0.08 1.47 8.04 -51.93 -0.42 1.06 16 37 H 0.07 1.42 8.14 -51.93 -0.42 0.99 16 38 H 0.38 9.85 7.45 45.56 0.34 10.19 16 39 H 0.27 6.93 8.31 -40.82 -0.34 6.59 16 40 H 0.06 1.72 7.82 -51.92 -0.41 1.31 16 41 H 0.06 1.68 7.92 -51.93 -0.41 1.27 16 42 H 0.08 0.68 6.98 -51.93 -0.36 0.32 16 43 H 0.07 0.77 6.52 -51.93 -0.34 0.43 16 44 H 0.08 0.80 5.47 -51.93 -0.28 0.51 16 45 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 46 H 0.06 0.40 8.14 -51.93 -0.42 -0.02 16 47 H 0.05 0.39 8.14 -51.93 -0.42 -0.03 16 48 H 0.06 0.36 8.14 -51.93 -0.42 -0.07 16 49 H 0.06 0.43 6.63 -51.93 -0.34 0.09 16 50 H 0.08 0.63 6.25 -51.93 -0.32 0.31 16 51 H 0.06 0.40 8.14 -51.93 -0.42 -0.02 16 52 H 0.07 0.55 6.36 -51.93 -0.33 0.22 16 53 H 0.07 0.60 7.47 -51.93 -0.39 0.21 16 LS Contribution 390.88 15.07 5.89 5.89 Total: -1.00 -29.96 390.88 -9.52 -39.48 By element: Atomic # 1 Polarization: 23.01 SS G_CDS: -8.24 Total: 14.77 kcal Atomic # 6 Polarization: 8.08 SS G_CDS: -1.24 Total: 6.83 kcal Atomic # 7 Polarization: -48.48 SS G_CDS: -0.29 Total: -48.77 kcal Atomic # 8 Polarization: -33.15 SS G_CDS: -0.62 Total: -33.77 kcal Atomic # 14 Polarization: 20.59 SS G_CDS: -5.02 Total: 15.57 kcal Total LS contribution 5.89 Total: 5.89 kcal Total: -29.96 -9.52 -39.48 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. ZINC000898936991.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 -88.641 kcal (2) G-P(sol) polarization free energy of solvation -29.958 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -118.598 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.517 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.475 kcal (6) G-S(sol) free energy of system = (1) + (5) -128.116 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.63 seconds