巧解数字试题

for x in range(0,10):
    if x ==5:
        print(x)
for ab in range(10,100):
    a=ab//10
    b=ab%10
    if a+b==5:
        print(ab)
for abc in range(100,1000):
    a=abc//100
    bc=abc%100
    b=bc//10
    c=bc%10
    if a+b+c==5:
        print(abc)