a,b = map(int, input().split())
a_area = a**2
b_area = b**2
times = a_area//b_area
times0and1 =times % 2 
if a < b:
    print("K")
elif a == b:
    print("S")
elif times0and1 == 0:
    print("S")
else:
    print("K")