C111123313121111121111331333133313331323112113321233133313232233131121221   >>    C11112331312111112111133133313331333132311211332123313331323223313112122   <<    C111123313121111121111331333133313331323112113321233133313232233131121223   >>      C111123313121111121111331333133313331323112113321233133313232233131121222   >>