print((function (f, g, s, t)
	local a,b,r = g(s),g(t),0
	for i=1,3 do r=f(a[i],b[i]) if r~=0 then break end end
	return r>=0 and "YES" or "NO"
end)(function (a, b)
	return a>b and 1 or a<b and -1 or 0
end, function (s)
	local a = {}
	for e in s:gmatch("%d+") do table.insert(a,tonumber(e)) end
	return a
end, io.stdin:read("*l"), io.stdin:read("*l")))