C222123232321333131133133313331323132313331323221233233232222121   >>    C22212323232133313113313331333132313231333132322123323323222212   <<    C222123232321333131133133313331323132313331323221233233232222123   >>      C222123232321333131133133313331323132313331323221233233232222122   >>