#include <iostream>
#include <stdio.h>
#include <math.h>
#define ll unsigned long long int
using namespace std;

int main(){
	string s;
	cin >> s;
	cout << "-------" << endl;
	for (int i = s.length() - 1; i >= 0; i--){
		cout << "i : " << i << "\t";
		cout << s.at(i);
	}

	cout << endl;
	return 0;
}