C1111133313331323223313331333133313331333131211113313332321123221   >>    C111113331333132322331333133313331333133313121111331333232112322   <<    C1111133313331323223313331333133313331333131211113313332321123223   >>      C1111133313331323223313331333133313331333131211113313332321123222   >>