salida_400x400.out

N = 400
arme A
arme b
arme C
Tiempo para la multiplicación manual:
  0.111715 seconds (11.35 k allocations: 2.107 MiB, 28.37% compilation time)
97.87527321564951
Tiempo usando LinearAlgebra (*):
  0.992404 seconds (2.13 M allocations: 146.647 MiB, 10.61% gc time, 99.15% compilation time)
97.87527321564959