S = input()
N = len(S)
t,c,p = 0,0,0
for i in range(N):
  if(S[i] == "T"):
    t += 1
  if(S[i] == "C"):
    c += 1
  if(S[i] == "P"):
    p += 1
if(c != 0):
  print("T"*t+"C"*c+"P"*p)
else:
  print("P"*p+"T"*t)