C1111133313331323223313331333133313331333131211113313331211113313331333123221   >>    C111113331333132322331333133313331333133313121111331333121111331333133312322   <<    C1111133313331323223313331333133313331333131211113313331211113313331333123223   >>      C1111133313331323223313331333133313331333131211113313331211113313331333123222   >>