def solution(x):
    result = ""
    for c in x:
        if ord('a') <= ord(c) and ord(c) <= ord('z'):
            result += chr(ord('a') + ord('z') - ord(c))
        else:
            result += c
    return result

tests = [
        ("wrw blf hvv ozhg mrtsg'h vkrhlwv?", "did you see last night's episode?"),
        ("Yvzs! I xzm'g yvorvev Lzmxv olhg srh qly zg gsv xlolmb!!", "Yeah! I can't believe Lance lost his job at the colony!!"),
        ]

for i, o in tests:
    result = solution(i)
    print (i, result == o, result, o)