python里把1到123的数字中所有3的倍数换成A

def main():
for num in range(1,124):
if num%3 == 0 and num%5 == 0:
print 'C'
elif num%3 == 0:
print 'A'
elif num%5 == 0:
print 'B'
else:
print num

if __name__ == "__main__":
main()