#include <stdio.h>
int main(void) {
	char arr[13];
	int i,n;
	scanf("%s", arr);	
	n = (arr[0]-'0') * 1 + (arr[2]-'0') * 2 + (arr[3]-'0') * 3 + (arr[4]-'0') * 4 + (arr[6]-'0') * 5 + (arr[7]-'0') * 6 + (arr[8]-'0') * 7 + (arr[9]-'0') * 8 + (arr[10]-'0') * 9;
	n = n % 11;
	if (n == 10) {
		arr[12] == 'X';
		printf("%s", arr);
	}	
	else if ((arr[12]-'0') == n)
		printf("Right");
	else {
		arr[12] == n+'0';
		printf("%s", arr);
	}
	return 0;
}