C1111233133313231133133313231333133313113313113313331331121111122332323111   >>    C111123313331323113313331323133313331311331311331333133112111112233232311   <<    C1111233133313231133133313231333133313113313113313331331121111122332323113   >>      C1111233133313231133133313231333133313113313113313331331121111122332323112   >>