./slicer 10
$VAR1 = [
          {
            'begin' => 0,
            'end' => 10
          },
          {
            'begin' => 10,
            'end' => 20
          },
          {
            'begin' => 20,
            'end' => 30
          },
          {
            'begin' => 30,
            'end' => 40
          },
          {
            'begin' => 40,
            'end' => 50
          },
          {
            'begin' => 50,
            'end' => 60
          },
          {
            'begin' => 60,
            'end' => 70
          },
          {
            'begin' => 70,
            'end' => 80
          },
          {
            'begin' => 80,
            'end' => 90
          },
          {
            'begin' => 90,
            'end' => 100
          }
        ];