#include<bits/stdc++.h>
using namespace std;
string a;
int n, m, b[114514], j = 1;
char shibiema2;
void read() {
	cin >> a;
}
void jisuan() {
	n = a.size();
	for (int i = 1; i <= n; ++i) {
		if (a[i] >= 0 && a[i] <= 9 ) {
			b[j] = a[i];
			j++;
		}
	}
	j--;
	for (int i = 1; i <= j; ++i) {
		m += b[j] * j;
	}
	m = m % 11;
	if (m == 10) {
		shibiema2 = 'x';
	}
	shibiema2 = '0' + m;
}
void print() {
	if (b[j + 1] == m) {
		printf("Right");
	} else {
		for (int i = 1; i < n; ++i) {
			cout << a[i];
		}
		cout << shibiema2;
	}
}
int main() {
	read();
	jisuan();
	print();
	return 0;
}