C1111233131211111211113313331333133313331322322331312111113311213331323113231   >>    C111123313121111121111331333133313331333132232233131211111331121333132311323   <<    C1111233131211111211113313331333133313331322322331312111113311213331323113233   >>      C1111233131211111211113313331333133313331322322331312111113311213331323113232   >>