华为笔试学习

key = input().strip()
word = input().strip()
#对单词进行去重
key1 = []
for i in key:
    if(i not in key1):
        key1.append(i)
#建立上下字母对照表
up = ['a','b','c','d','e','f',
      'g','h','i','j','k','l',
      'm','n','o','p','q','r',
      's','t','u','v','w','x','y','z']
low = []
for i in key1:
    low.append(i)
for i in up:
    if(i not in low):
        low.append(i)
#获得word单词索引
inde = []
for i in word:
    inde.append(up.index(i))
s = ''
for i in range(len(word)):
    s = s+low[inde[i]]
print(s)