C312322331333132212111133133313331333133312121111331333131332313231311   >>    C31232233133313221211113313331333133313331212111133133313133231323131   <<    C312322331333132212111133133313331333133312121111331333131332313231313   >>      C312322331333132212111133133313331333133312121111331333131332313231312   >>