[Proj] Problem converting from WGS84 to ROME40

[Luca Casagrande]

Hi to all guys!
I need to convert from WGS84 to ROME40 a point on te Peninsula part of
Italy; surfing through doc, i compose this line:

cs2cs -vErs +proj=latlong +datum=WGS84   +to +proj=latlong +ellps=intl 
+towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68 \punto

Punto is:
43d07'08.7045"N 12d21'17.6455"E 341,964

And the ouput of that line is:

43d07'08.7045"N 12d21'17.6455"E 341     43d7'6.341"N    12d21'18.369"E
295.341

I know for sure that real coordinates are:  43d7'06.3"N    -0d05'50.00"E
292,605 ( the longituide in Roma40, start from Monte Mario wich is
012° 27'    08,4" Est)

What i am missing?
Thx
Luca Casagrande

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