C222133313331333131123313231333133313331333132112323133313223221211   >>    C22213331333133313112331323133313331333133313211232313331322322121   <<    C222133313331333131123313231333133313331333132112323133313223221213   >>      C222133313331333131123313231333133313331333132112323133313223221212   >>