/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.09.05 02:24:36
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

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