C22212323232133313113313331333132313231333132311233123323313321   >>    C2221232323213331311331333133313231323133313231123312332331332   <<    C22212323232133313113313331333132313231333132311233123323313323   >>      C22212323232133313113313331333132313231333132311233123323313322   >>