#include <bits/stdc++.h>
using namespace std;

int main(){
  string S, T;
  cin >> S;
  T = "abcdefghijklmnopqrstuvwxyz";
  
  for(int i = 0; i < 26; i++){
    if(S[i] != T[i]) cout << T[i] << "to" << S[i];
  }
}