C111123313331323113313331333133313331323123231333133313331331123313331312131   >>    C11112331333132311331333133313331333132312323133313331333133112331333131213   <<    C111123313331323113313331333133313331323123231333133313331331123313331312133   >>      C111123313331323113313331333133313331323123231333133313331331123313331312132   >>