C312322331333132212111133133313331333133312121111331211111333133313211212211231   >>    C31232233133313221211113313331333133313331212111133121111133313331321121221123   <<    C312322331333132212111133133313331333133312121111331211111333133313211212211233   >>      C312322331333132212111133133313331333133312121111331211111333133313211212211232   >>