C1111133313331323223313331333133313331323131211113313221213331311132331   >>    C111113331333132322331333133313331333132313121111331322121333131113233   <<    C1111133313331323223313331333133313331323131211113313221213331311132333   >>      C1111133313331323223313331333133313331323131211113313221213331311132332   >>