F 2x

F 2xF 2xF 2xF 2xF 2xF 2x
F 2xF 2xF 2xF 2xF 2xF 2x
F 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2xF 2x