C222133313331333131123313231333133313331333132112323132112322121   >>    C22213331333133313112331323133313331333133313211232313211232212   <<    C222133313331333131123313231333133313331333132112323132112322123   >>      C222133313331333131123313231333133313331333132112323132112322122   >>