A,B = input().split()
if A == '0' and B == '0':
	print("E")
elif A == '0' or B == '0':
	print('S')
elif A == '1' and B == '1':
	print("S")
elif A == '1' or B == '1':
	print('S')
elif A == '2' and B == '2':
	print('E')
else:
	print("P")