init_initfunc(); print(pow_M(2))
vector(100,i,mybfffo(i))
vector(31,i,mybfffo(1<<(i-1)))
for(i=1,5,count();aff())
init_initfunc();f1(0)
init_initfunc();f1(1)
init_initfunc();f2(0)
init_initfunc();f2(1)
init_initfunc();f3(0)
init_initfunc();f3(1)
