C312322331333132212111133133313331333133312121111331333221131231   >>    C31232233133313221211113313331333133313331212111133133322113123   <<    C312322331333132212111133133313331333133312121111331333221131233   >>      C312322331333132212111133133313331333133312121111331333221131232   >>