C22212323232133313113313331333132313231333132212132312323311321   >>    C2221232323213331311331333133313231323133313221213231232331132   <<    C22212323232133313113313331333132313231333132212132312323311323   >>      C22212323232133313113313331333132313231333132212132312323311322   >>