C312322331333132212111133133313331333133312121111331321123123131   >>    C31232233133313221211113313331333133313331212111133132112312313   <<    C312322331333132212111133133313331333133312121111331321123123133   >>      C312322331333132212111133133313331333133312121111331321123123132   >>