C111123313121111121111331333133313331323112113321233133313332212121   >>    C11112331312111112111133133313331333132311211332123313331333221212   <<    C111123313121111121111331333133313331323112113321233133313332212123   >>      C111123313121111121111331333133313331323112113321233133313332212122   >>