C22212323232133313113313331333132313231333132311233123311323131   >>    C2221232323213331311331333133313231323133313231123312331132313   <<    C22212323232133313113313331333132313231333132311233123311323133   >>      C22212323232133313113313331333132313231333132311233123311323132   >>