C1111233133313231133133313231333132313331313231321211113311233131   >>    C111123313331323113313331323133313231333131323132121111331123313   <<    C1111233133313231133133313231333132313331313231321211113311233133   >>      C1111233133313231133133313231333132313331313231321211113311233132   >>