C312312111133131212111133133313231333132311331333133313221321121   >>    C31231211113313121211113313331323133313231133133313331322132112   <<    C312312111133131212111133133313231333132311331333133313221321123   >>      C312312111133131212111133133313231333132311331333133313221321122   >>