C222123232321333131133133313331323132313331323221233233213331311   >>    C22212323232133313113313331333132313231333132322123323321333131   <<    C222123232321333131133133313331323132313331323221233233213331313   >>      C222123232321333131133133313331323132313331323221233233213331312   >>