C1111233131211111211113313331333133313232313331333133322132322331   >>    C111123313121111121111331333133313331323231333133313332213232233   <<    C1111233131211111211113313331333133313232313331333133322132322333   >>      C1111233131211111211113313331333133313232313331333133322132322332   >>