C22212323232133313113313331333132313231333132212132312121121132321   >>    C2221232323213331311331333133313231323133313221213231212112113232   <<    C22212323232133313113313331333132313231333132212132312121121132323   >>      C22212323232133313113313331333132313231333132212132312121121132322   >>