#include<bits/stdc++.h>
using namespace std;
int main(){
    char a[15];
    int b=0;
    cin>>a;
    b+=a[0]-'0';
    b+=(a[2]-'0')*2+(a[3]-'0')*3+(a[4]-'0')*4;
    b+=(a[6]-'0')*5+(a[7]-'0')*6+(a[8]-'0')*7+(a[9]-'0')*8+(a[10]-'0')*9;
    b%=11;
    int k=0;
    if(a[12]=='X'){
        k=10;
    }else{
        k=a[12]-'0'; 
    }
    // cout<<k<<endl;
    if(b==k){
        cout<<"Right";
    }else{
        if(b==10){
            a[12]='X';
        }else{
            a[12]=char(b+'0');
        }
        cout<<a;
    }
    return 0;
}