#include<iostream>
using namespace std;intmain(){char c;int P =0, A =0, T =0, e =0, s =0, t =0;//输入并计算重复次数while(1){
c =getchar();if(c =='\n')break;switch(c){case'P':P++;break;case'A':A++;break;case'T':T++;break;case'e':e++;break;case's':s++;break;case't':t++;break;}}//按顺序检查,有剩余则输出while(1){if(P + A + T + e + s + t ==0)break;if(P >0){
cout <<'P';
P--;}if(A >0){
cout <<'A';
A--;}if(T >0){
cout <<'T';
T--;}if(e >0){
cout <<'e';
e--;}if(s >0){
cout <<'s';
s--;}if(t >0){
cout <<'t';
t--;}}//system("pause");return0;}