C312322331333132212111133133313331312111133132313331333112211232313123231   >>    C31232233133313221211113313331333131211113313231333133311221123231312323   <<    C312322331333132212111133133313331312111133132313331333112211232313123233   >>      C312322331333132212111133133313331312111133132313331333112211232313123232   >>