#include <iostream>
#include <string>
using namespace std;

int main() {
    string isbn;
    cin >> isbn;
    
    string digits;
    for (char c : isbn) {
        if (c >= '0' && c <= '9') {
            digits.push_back(c);
            if (digits.size() == 9) break;
        }
    }
    
    int sum = 0;
    for (int i = 0; i < 9; ++i) {
        int digit = digits[i] - '0';
        sum += digit * (i + 1);
    }
    
    int mod = sum % 11;
    char correct_check;
    if (mod == 10) {
        correct_check = 'X';
    } else {
        correct_check = mod + '0';
    }
    
    char input_check = isbn.back();
    
    if (input_check == correct_check) {
        cout << "Right" << endl;
    } else {
        isbn.back() = correct_check;
        cout << isbn << endl;
    }
    
    return 0;
}