C312322331333132212111133133313331333133312121111331322133313112113123313211231   >>    C31232233133313221211113313331333133313331212111133132213331311211312331321123   <<    C312322331333132212111133133313331333133312121111331322133313112113123313211233   >>      C312322331333132212111133133313331333133312121111331322133313112113123313211232   >>