C22212323232133313113313331333132313231333132313222131123223321   >>    C2221232323213331311331333133313231323133313231322213112322332   <<    C22212323232133313113313331333132313231333132313222131123223323   >>      C22212323232133313113313331333132313231333132313222131123223322   >>