sierpinski_carpet.bf

input order and print the associated Sierpinski carpet
orders over 5 require larger cell sizes

+++>>+[[-]>[-],[+[-----------[>[-]++++++[<------>-]<--<<[->>++++++++++<<]>>[-<<+
>>]<+>]]]<]<<[>>+<<-]+>[>>[-]>[-]<<<<[>>>>+<<<<-]>>>>[<<[<<+>>>+<-]>[<+>-]>-]<<<
-]>[-]<<[>+>+<<-]>>[<<+>>-]<[<[>>+>+<<<-]>>>[<<<+>>>-]<[<[>>+>>>+<<<<<-]>>[<<+>>
-]<[>>+>>>+<<<<<-]>>[<<+>>-]>>->-<<<<+[[>+>+<<-]>[<+>-]>[>[>>+>+<<<-]>>>[<<<+>>>
-]+++<[->-[>+>>]>[+[-<+>]>+>>]<<<<<]>[-]>>[-]<->+<[>-]>[<<<+>>>->]<<[-]<<<[>>+>+
<<<-]>>>[<<<+>>>-]+++<[->-[>+>>]>[+[-<+>]>+>>]<<<<<]>[-]>>[-]<->+<[>-]>[<<<+>>>-
>]<<[-]<<<[>[>+<-]<-]>[-]>[<<+>>-]<<[>>++++[<++++++++>-]<..[-]<<[-]<[-]<<<->>>>>
-]<<<-]<<[>+>+<<-]>[<+>-]>[>[>>+<<-]>>>+++<[->-[>+>>]>[+[-<+>]>+>>]<<<<<]>[-]>[-
]>[<<<<<+>>>>>-]<<<+++<[->-[>+>>]>[+[-<+>]>+>>]<<<<<]>[-]>[-]>[<<<+>>>-]<<<<[>>+
>+<<<-]>>>[<<<+>>>-]<<[>>+>+<<<-]>>>[<<<+>>>-]<<[>[>+<-]<-]>[-]+>[[-]<->]<[->+<]
>[<<+>>-]<<[>>+++++[<+++++++>-]<..[-]<<[-]<[-]<<<->>>>>-]<<<-]<<]<-]++++++++++.[
-]<-]