C312322331333132212111133133313331333133312121111331331123231321123131   >>    C31232233133313221211113313331333133313331212111133133112323132112313   <<    C312322331333132212111133133313331333133312121111331331123231321123133   >>      C312322331333132212111133133313331333133312121111331331123231321123132   >>