declare(strict_types=1);

$lc = mb_chr(0x003C);
$rc = mb_chr(0x003E);

function get_ints(): array{
    return array_map('intval', explode(" ", trim(fgets(STDIN))));
}

[$n] = get_ints();

while($n--){
    [$a, $b] = get_ints();

    $c = $a - $b;

    if ($c == 0){
        fputs(STDOUT, "=\n");
    } else if ($c & (2 ** 31)){
        fputs(STDOUT, $lc . "\n");
    } else {
        fputs(STDOUT, $rc . "\n");
    }

}