.-*------.
>>-+-COPY-+--+-line_1--+--------+--+--------+------+------------>
'-CO---' | '-line_2-' '-line_3-' |
| .-*--------. .-1-----. .-*------. |
'-+-'string'-+--+-------+--+--------+-'
'-count-' '-line_4-'
>--+-------------+---------------------------------------------><
'-INCR(lines)-'