写个判断函数，只要短的字符串中某个字母没在长的字符串中，则返回‘false’

def judge(s1,s2):
    for i in s1:
        if not i in s2:
            return 'false'
    return 'true'
while 1:
    try:
        print(judge(input(),input()))
    except:
        break