#include<bits/stdc++.h>
using namespace std;
int main()
{
    string s;cin>>s;
    int t=0,c=1;
    int n=s.size();
    for(int i=0;i<n-1;i++)
    {
        if(s[i]<='9'&&s[i]>='0')
        {
            t=t+(s[i]-'0')*c;
            c++;
        }
    }
    int sum=t%11;
    if(sum==10&&s[n-1]=='X'||s[n-1]-'0'==sum) 
    {
        cout<<"Right";
    }
    else
    {
        if(sum==10)
        {
            s[n-1]='X';
        }
        else 
        {
            s[n-1]=sum+'0';
        }
        cout<<s;
    }
    return 0;
}