C1111133313331323223313331333133313311211111211331333131233133323331   >>    C111113331333132322331333133313331331121111121133133313123313332333   <<    C1111133313331323223313331333133313311211111211331333131233133323333   >>      C1111133313331323223313331333133313311211111211331333131233133323332   >>