简单易懂题解 | #字符串字符匹配#

while True:
    try:
        s, l = input(), input()
        res = 'true'
        for i in s:
            if i not in l:
                res = 'false'
                break
        print(res)
    except:
        break
        
# while True:
#     try:
#         S, T = input(), input()
#         if set(S) & set(T) == set(S):   # set()去重，然后求交集
#             print('true')
#         else:
#             print('false')
#     except:
#         break