S = input()

if 'C' not in S:
    p = S.count('P')
    t = S.count('T')
    ans = ('P' * p) + ('T' * t)
    print(ans)
else:
    d = {'T': 0, 'C': 1, 'P': 2}
    ans = sorted(S, key=lambda c: d[c])
    print(''.join(ans))