use strict;
use Test::More q(no_plan);

my @z = qw(1 3 27 38);

my $x = shift();
my $y = shift();

my @test = (
    [qw(  4   5) => 1],
    [qw(  0  -1) => 1],
    [qw(100 100) => 1],
    [qw( 10  27) => 1],
    [qw(  3  27) => 0],
    [qw(  0 100) => 0],
);

sub bool { not not shift }

for(@test) {
    my ($x, $y, $works) = @$_;
    is(
         #        1         2         3
         #23456789012345678901234567890
        ((grep$x<=$_,@z)==grep$y<=$_,@z),
        bool($works),
        "x=$x y=$y"
    );
}

__END__
ok 1 - x=4 y=5
ok 2 - x=0 y=-1
ok 3 - x=100 y=100
ok 4 - x=10 y=27
ok 5 - x=3 y=27
ok 6 - x=0 y=100
1..6
[download]

Makeshifts last the longest.