F c r b

F c r bF c r bF c r bF c r bF c r bF c r b
F c r bF c r bF c r bF c r bF c r bF c r b
F c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r bF c r b