C1111233133313231133133313311211113313231323223331211111121131212111   >>    C111123313331323113313331331121111331323132322333121111112113121211   <<    C1111233133313231133133313311211113313231323223331211111121131212113   >>      C1111233133313231133133313311211113313231323223331211111121131212112   >>