F n 3 r

F n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 r
F n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 r
F n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 rF n 3 r