(function (f, g1, g2)
	for _=1,g1() do print(f(g2())) end
end)(function (n)
	return (n==0 and "=") or (n==math.abs(n) and "\x3e") or "\x3c"
end, (function (M)
	M.cdef 'int scanf(const char *, ...);'
	local C,c,d = M.C,M.new("int[1]"),M.new("int[1]")
	return
		function () C.scanf("%d",c) return c[0] end,
		function () C.scanf("%d%d",c,d) return c[0]-d[0] end
end)(require'ffi'))