sub deepsort {
  substr( $_[0], $p[0], $l[0]) cmp substr( $_[1], $p[0], $l[0] )
			||
  substr( $_[0], $p[1], $l[1]) cmp substr( $_[1], $p[1], $l[1] )
			||
....ad nauseum
}
@sorted = sort 'deepsort', @list;