#include <iostream>
#include <string>
using namespace std;
int main()
{
	string isbn;
	cin >> isbn;
	int sum = 0;
	int digitIndex = 1;
	for (int i = 0; i < isbn.size() - 1; ++i) {
		if (isbn[i] == '-') {
			continue;
		}
		sum += (isbn[i] - '0') * digitIndex;
		digitIndex++;
	}
	char correctCheck;
	int mod = sum % 11;
	if (mod == 10) {
		correctCheck = 'X';
	} else {
		correctCheck = mod + '0';
	}
	char inputCheck = isbn.back();
	if (inputCheck == correctCheck) {
		cout << "Right" << endl;
	} else {
		isbn.back() = correctCheck;
		cout << isbn << endl;
	}
	
	return 0;
}