C22212323232133313113313331333132313231333132311233123311321223321   >>    C2221232323213331311331333133313231323133313231123312331132122332   <<    C22212323232133313113313331333132313231333132311233123311321223323   >>      C22212323232133313113313331333132313231333132311233123311321223322   >>