import java.util.*;
public class Main {
	public static void main(String[] arg) {
		Scanner sc = new Scanner(System.in);
		String a = sc.next();
		String b = a.substring(0,1)+a.substring(2, 5)+a.substring(6, 11);
		String c = a.substring(12, 13);
		//int n = Integer.parseInt(c);
		int[] arr = new int[9];
		int x = 0;
		for(int i=0;i<b.length();i++) {
			String d = b.substring(x, i+1);
			x++;
			arr[i] = Integer.parseInt(d);
		}
		int[] arr1 = new int[9];
		int sum = 0;
		for(int j = 0; j<arr1.length;j++) {
			arr1[j] = arr[j]*(j+1);
			sum+=arr1[j];
		}
        String e = ""+sum%11;
		if(sum%11==10) {
			e = "X";
		}
		if(c==e) {
			System.out.println("Right");
		}
		else {
			System.out.println(a.substring(0, 12)+e);
		}
	}
}