C222123232321333131133133313331323132313331323221233233131322321   >>    C22212323232133313113313331333132313231333132322123323313132232   <<    C222123232321333131133133313331323132313331323221233233131322323   >>      C222123232321333131133133313331323132313331323221233233131322322   >>