ffffffffhhhhhhhhhhhh

#include <iostream>
#include <cstring>
using namespace std;
int main(){
char a[20];
char answer;
int sum=0,k=1;
cin>>a;
for(int i=0;i<strlen(a)-2;i++){
if(a[i]!='-'){
sum+=(a[i]-48)*k;
k++ ;
}
}

char temp=a[strlen(a)-1];
answer=sum%11+48;
if(answer=='9'+1) answer='X';

if(answer==temp) cout<<"Right";
else{
	for(int i=0;i<strlen(a)-1;i++){
		cout<<a[i];
	}
	cout<<answer;
}
return 0;
}