#include <stdio.h>

int main() {
	int a, b;
	scanf("%d %d", &a, &b);

	double r = a * 2;
	int p = 0;

	while (r >= b * 2) {
		r /= 2.0;
		r -= b;
		p++;
	}
	
	if (p % 2 == 0) puts("K");
	else puts("S");

	return 0;
}