#include<iostream>
using namespace std;
int main()
{
	char s[13];
	for (int i = 0; i < 13; i++)
	{
		cin >> s[i];
	}
	int m = 0;
	for (int i = 0,j=1; i < 11; i++)
	{
		if (s[i] == '-')
		continue;
		m += (s[i] - '0') * j;
		j++;
	}
	if ((m % 11 == s[12]-'0') || (m % 11 == 10 && s[12] == 'x'))
	{
		cout << "Right";
	}
	else
	{
		if (m % 11 == 10)
			s[12] = 'X';
		else
			s[12] = m % 11 + '0';
		for (int i = 0; i < 13; i++)
		{
			cout << s[i];
		}
		//cout << s;
	}
}