# for i in $(seq 1 5); do time ./matrix_mult_18.o; done
       93.98 real        91.95 user         0.74 sys
       93.47 real        91.40 user         0.78 sys
       94.87 real        92.75 user         0.82 sys
       94.50 real        92.33 user         0.85 sys
       94.46 real        92.29 user         0.87 sys