larg_cont, comp_cont, alt_cont = [int(w) for w in input().split()]
larg_navio, comp_navio, alt_navio = [int(w) for w in input().split()]

num_cont = (larg_navio // larg_cont) * (comp_navio // comp_cont) * (alt_navio // alt_cont)

print(num_cont)