------Input------
496 3
------Answer-----
a b c d e f g h i j k l m n o p q r s t u v w x y z Z Y X W V U T S R Q P O N M L K J I H G F E D C B A
------Your output-----
a b c d e f g h i j k l m n o p q r s t u v w x y z 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65