BEGIN{for(;++i<104;){printf"%c\n",i/4+65}}
Standard input is empty
A A A B B B B C C C C D D D D E E E E F F F F G G G G H H H H I I I I J J J J K K K K L L L L M M M M N N N N O O O O P P P P Q Q Q Q R R R R S S S S T T T T U U U U V V V V W W W W X X X X Y Y Y Y Z Z Z Z
The brand new service which powers Ideone!
Widget for compiling and running the source code in a web browser!