C1111133313331323223313331333133313331333232233133112111112111111331312323231   >>    C111113331333132322331333133313331333133323223313311211111211111133131232323   <<    C1111133313331323223313331333133313331333232233133112111112111111331312323233   >>      C1111133313331323223313331333133313331333232233133112111112111111331312323232   >>