#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main(){
  string s;
  cin >> s;
  vector<char> a(26);
  for(int i=0; i<=('z'-'a'); i++) {
    a[i] = (char)('a' + i);
  }
  rep(i,a.size()) {
    if (a[i] != s[i]) cout << a[i] << "to" << s[i] << endl;
  }
  return 0;
}