C1111233133313231133133313311211113313231323223331211111333132313231211   >>    C111123313331323113313331331121111331323132322333121111133313231323121   <<    C1111233133313231133133313311211113313231323223331211111333132313231213   >>      C1111233133313231133133313311211113313231323223331211111333132313231212   >>