题解 | #字符串加密#

# 如果单词中包含有重复的字母，只保留第1个，将所得结果作为新字母表开头
key=input()
s=input()

# a-z字母表
alpha=[]
for i in range(97,123):
    alpha.append(chr(i))

# key去重
alpha1=[]
for i in key:
    if i not in alpha1:
        alpha1.append(i)

# 新字母表补足
for i in alpha:
    if i not in alpha1:
        alpha1.append(i)

for i in s:
    for j in alpha:
        if i==j:
            print(alpha1[alpha.index(i)],end='')
#print(alpha)
#print(alpha1)