from itertools import cycle

cipher = [int(i) for i in input('Enter ciphertext:\n').split()]

splits = [cipher[::3], cipher[1::3], cipher[2::3]]


def distance_mod_256(x, y):
    return min((x - y) % 256, (y - x) % 256)


def find_whitespace(iterable):
    # whitespace is the 'outlier' in the cyclic group
    # the sum of it's distances from the other characters is the largest
    sum_distances = lambda x: sum([distance_mod_256(x, i) for i in iterable])
    return max(iterable, key=sum_distances)


offsets = [find_whitespace(split) - 32 for split in splits]  # whitespace is 32 in ascii

decrypted = []
for split, offset in zip(splits, offsets):
    decrypted.append([chr((i-offset) % 256) for i in split])

iters = [iter(text) for text in decrypted]
print(''.join(next(it) for it in cycle(iters)))