C1111133313331323223313331333133313331333131211113313331211113313112121311   >>    C111113331333132322331333133313331333133313121111331333121111331311212131   <<    C1111133313331323223313331333133313331333131211113313331211113313112121313   >>      C1111133313331323223313331333133313331333131211113313331211113313112121312   >>