#include<bits/stdc++.h>
using namespace std;
int main(){
string s;
cin >> s;
int sum = 0,t = 0;
char n;
for(int i = 0; i < 12; i++) {
if(s[i] >= '0' && s[i] <= '9') {
t++;
sum += (s[i] - '0') * t;
}
}
sum %= 11;
if(sum == 10) n = 'X';
else n = sum + '0';
if(n == s[12]) cout << "Right";
else {
for(int i = 0;i < 12;i++)
cout << s[i];
cout << n;
}
return 0;
}
