C312322331333132212111133133313331333133312121111331333133112132311211   >>    C31232233133313221211113313331333133313331212111133133313311213231121   <<    C312322331333132212111133133313331333133312121111331333133112132311213   >>      C312322331333132212111133133313331333133312121111331333133112132311212   >>