---

#include <stdio.h>

int main(void) {
	double x, y;

	if (scanf("%lf %lf", &x, &y) != 2) {
		printf("n/a");
	} else {
		int c = getchar();

		while (c == ' ' || c == '\t' || c == '\r') {
			c = getchar();
		}

		if ((c != '\n' && c != EOF) || x - x != 0 || y - y != 0) {
			printf("n/a");
		} else if (x * x + y * y < 25) {
			printf("GOTCHA");
		} else {
			printf("MISS");
		}
	}

	return 0;
}