C1111133313331323223313331333133313331333232111211113313231123331   >>    C111113331333132322331333133313331333133323211121111331323112333   <<    C1111133313331323223313331333133313331333232111211113313231123333   >>      C1111133313331323223313331333133313331333232111211113313231123332   >>