C312322331333132212111133133313331333133312121111331333133321113232211   >>    C31232233133313221211113313331333133313331212111133133313332111323221   <<    C312322331333132212111133133313331333133312121111331333133321113232213   >>      C312322331333132212111133133313331333133312121111331333133321113232212   >>