KY90 简单密码

KY90 简单密码

import sys
for line in sys.stdin:
    line = line.strip()
    if line=='ENDOFINPUT':
        break
    elif line == 'START' or line == 'END':
        continue
    result = ''
    for c in line:
        if 'A'<=c<='Z':
            c = chr((ord(c)-ord("A")-5+26)%26+ord("A"))
        result += c
    print(result)
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