C1111133313331323223313331333133313331333131211113313331311222211211   >>    C111113331333132322331333133313331333133313121111331333131122221121   <<    C1111133313331323223313331333133313331333131211113313331311222211213   >>      C1111133313331323223313331333133313331333131211113313331311222211212   >>