include <bits/stdc++.h>

using namespace std;

int main() {

char a[13];
int sum = 0, k = 1;
for (int i = 0; i < 12; i++) {
	cin >> a[i];
	if (a[i] >= '0' && a[i] <= '9') {
		sum += (a[i] - '0') * k;
		k++;
	}
}
cin >> a[12];
sum %= 11;
if (sum == 10) {
	if (a[12]== 'X') {
		cout << "Right";
		return 0;
	} else
		a[12] = 'X';
} else {
	if (sum == a[12] - '0') {
		cout << "Right";
		return 0;
	} else
		a[12] = sum + '0';
}
for (int i = 0; i < 13; i++)
	cout << a[i];
return 0;

}