C11112331312111112111133133313231333132311212111133133313331333221321121   >>    C1111233131211111211113313331323133313231121211113313331333133322132112   <<    C11112331312111112111133133313231333132311212111133133313331333221321123   >>      C11112331312111112111133133313231333132311212111133133313331333221321122   >>