C111123313121111121111331333133313331333132232233131211113313221131231123221   >>    C11112331312111112111133133313331333133313223223313121111331322113123112322   <<    C111123313121111121111331333133313331333132232233131211113313221131231123223   >>      C111123313121111121111331333133313331333132232233131211113313221131231123222   >>