题解 | #简单密码#

a = input()
dic = {
    "abc": "2", 
    "def": "3", 
    "ghi": "4", 
    "jkl": "5", 
    "mno": "6", 
    "pqrs": "7", 
    "tuv": "8", 
    "wxyz": "9"
}
result = ''
for i in a:
    if i.isupper():
        if i != 'Z':
            # 后移一位,转ASCII
            i = ord(i.lower())
            i = i + 1
            i = chr(i)
        else: i = 'a'
        result += i
    elif i.islower():
        for j in dic:
            if i in j:
                result += dic[j]
    else:
        result += i
print(result)