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

int main(){
	string isbn;
	cin >> isbn;
	
	string isbn2=isbn;
	isbn2.erase(11,1);
	isbn2.erase(5,1);
	isbn2.erase(1,1);
	
	int res=0;
	for(int i=1;i <= 9;i++){
		int x=isbn2[i-1]-'0';
		res += x*i;
	}
	res %= 11;
	
	if(res == isbn2[9]-'0') cout << "Right";
	else if(res == 10 && isbn2[9] == 'X') cout << "Right";
	else{
		if(res == 10) isbn.replace(12,12,"X");
		else isbn.replace(12,12,to_string(res));
		cout << isbn;
	}
	
	return 0;
}