Hey, well this is Iron man, very easy.
*note, it’s only the main riff but I’ll be uploading the entire song soon.
Thanks. 
(I’m only 14 so don’t be surprised if I get it wrong, but I’m sure its right, try it for yourselves!!!!)


Main riff*


E-------------------------------------------------------------------------
B-------------------------------------------------------------------------
G-------------------------------------------------------------------------
D-------------------------------------------------------------------------
A-------------------------------------------------------------------------
E----0----3----3----5----5-----8----7-----8----7-----8----3----3----5----5


I personally think this is Black Sabbath’s best song and MAN THEY RULE!!