#include<bits/stdc++.h>
using namespace std;
string a;
int main(){
	cin>>a;
	int s=(a[0]-'0')*1+(a[2]-'0')*2+(a[3]-'0')*3+(a[4]-'0')*4+(a[6]-'0')*5+(a[7]-'0')*6+(a[8]-'0')*7+(a[9]-'0')*8+(a[10]-'0')*9;
	s%=11;
	if(s==a[12]-'0')  printf("Right");
	else{
		if(s==10)  a[12]='X';
		else  a[12]=s+'0';
		cout<<a;
	}return 0;
}