题解 | #简单密码#

import sys

pairs = (
    (2, '2'),
    (5, '3'),
    (8, '4'),
    (11, '5'),
    (14, '6'),
    (18, '7'),
    (21, '8'),
    (25, '9')
)

for line in sys.stdin.readlines():
    line = line.strip()
    ret = []
    for c in line:
        if 'a' <= c <= 'z':
            for pos, num in pairs:
                if (ord(c) - ord('a')) <= pos:
                    ret.append(num)
                    break
            continue
        if 'A' <= c <= 'Z':
            c = chr(ord(c.lower()) + 1) if c < 'Z' else 'a'
            ret.append(c)
            continue
        ret.append(c)
    print(''.join(ret))