C11111333133313232233133313331333133313231313131211113313332212311   >>    C1111133313331323223313331333133313331323131313121111331333221231   <<    C11111333133313232233133313331333133313231313131211113313332212313   >>      C11111333133313232233133313331333133313231313131211113313332212312   >>