C222133313331333131123313231333133313331333132112323133313232233132332313112121   >>    C22213331333133313112331323133313331333133313211232313331323223313233231311212   <<    C222133313331333131123313231333133313331333132112323133313232233132332313112123   >>      C222133313331333131123313231333133313331333132112323133313232233132332313112122   >>