#include <iostream>
using namespace std;
char a[15], p[12]="0123456789N";

int main()
{
	scanf("%s", a);
	int x = 0, n = 1;
	for (int i = 0; i < 12; i++)
	{
		if (a[i] == '-')
			continue;
		x += (a[i] - 48) * n;
		n++;
	}
	if (x % 11 == a[12] - 48)
		printf("Right");
	else
	{
		a[12] = x % 11 + 48;
		printf("%s", a);
	}
	return 0;
}