C1111133313331323223313331333133313331323131211113322331312323221   >>    C111113331333132322331333133313331333132313121111332233131232322   <<    C1111133313331323223313331333133313331323131211113322331312323223   >>      C1111133313331323223313331333133313331323131211113322331312323222   >>