$ perl -le'sub f { print("@_"); } f (5) + 4'
5

##</code><code>##

$ perl -wle'sub f { print("@_"); } f (5) + 4'
Useless use of addition (+) in void context at -e line 1.
5

##</code><code>##

print (v('I')+1)*26 + v('V'), "\n";

##</code><code>##

print( v('I')+1 )
   * 26
      + v('V'),
"\n";