C222133313331333131123313231333133313331333131123313223313231333133311213221   >>    C22213331333133313112331323133313331333133313112331322331323133313331121322   <<    C222133313331333131123313231333133313331333131123313223313231333133311213223   >>      C222133313331333131123313231333133313331333131123313223313231333133311213222   >>