C11111333133313232233133313331333133313231313131211113313113313232333132321121   >>    C1111133313331323223313331333133313331323131313121111331311331323233313232112   <<    C11111333133313232233133313331333133313231313131211113313113313232333132321123   >>      C11111333133313232233133313331333133313231313131211113313113313232333132321122   >>