C312322331333132212111133133313331333133312121111331331123131221   >>    C31232233133313221211113313331333133313331212111133133112313122   <<    C312322331333132212111133133313331333133312121111331331123131223   >>      C312322331333132212111133133313331333133312121111331331123131222   >>