C1111133313331323223313331333133313331333232233133112111112111111331312323221   >>    C111113331333132322331333133313331333133323223313311211111211111133131232322   <<    C1111133313331323223313331333133313331333232233133112111112111111331312323223   >>      C1111133313331323223313331333133313331333232233133112111112111111331312323222   >>