def _convert_nn(val):
 if (val < 20):
  return to_19[val]
 for (dcap, dval) in ((k, (20 + (10 * v))) for (v, k) in enumerate(tens)):
  if ((dval + 10) > val):
   if (val % 10):
    return ((dcap + '-') + to_19[(val % 10)])
   return dcap

def _convert_nn ( val ) : if ( val < 20 ) : return to_19 [ val ] for ( dcap , dval ) in ( ( k , ( 20 + ( 10 * v ) ) ) for ( v , k ) in enumerate ( tens ) ) : if ( ( dval + 10 ) > val ) : if ( val % 10 ) : return ( ( dcap + '-' ) + to_19 [ ( val % 10 ) ] ) return dcap
convert a value < 100 to english .