print((function ()
	local a,b = io.stdin:read("*l"):match("(%d+) (%d+)")
	if (a=="0" and b=="0") or (a=="2" and b=="2") then return "E" end
	if a=="0" or a=="1" or b=="0" or b=="1" then return "S" end
	return "P"
end)())