#include <cstdio>
#include <cmath>
#define rep( i, n, m ) for(ll i = ( n ); i < ( m ); i++)
using ll = long long int;

int give_water( int* array, int begin, int end );

int main( void ){
	ll R, r;
	if (!scanf( "%lld %lld", &R, &r ))
		return 0;
	int time = ( R - r / 2 ) / r;
	if (R < r){
		printf( "K\n" );
		return 0;
	}
	int count = 1;
	rep( i, 1, time + 1 ){
		float length = 2 * i * M_PI * r;
		count += ( int )( length / r );
	}
	if (count % 2 == 0){
		printf( "K\n" );
	}
	else
		printf( "S\n" );
	return 0;
}