================================
list length : 40
normal list deepcopy(RunTime): 69.92623549164172 us.
fic list deepcopy(RunTime): 591.26125 us.
json list deepcopy(RunTime): 360.84069063723746 us.
================================
list length : 400
normal list deepcopy(RunTime): 670.3355 us.
fic list deepcopy(RunTime): 25010.119047619046 us.
json list deepcopy(RunTime): 3228.592203898051 us.
================================
list length : 4000
normal list deepcopy(RunTime): 6688.715568862275 us.
fic list deepcopy(RunTime): 1945626.5 us.
json list deepcopy(RunTime): 30444.144927536232 us.
