C1111233131211111211113313331333133313331333131211111333133313222331   >>    C111123313121111121111331333133313331333133313121111133313331322233   <<    C1111233131211111211113313331333133313331333131211111333133313222333   >>      C1111233131211111211113313331333133313331333131211111333133313222332   >>