A Venn Diagram is simply a common Diagram used to compare two or more things,objects and in math: sets.
The usual Venn Diagram has 2 circles and the place where they intersect is what the sets have in common, this part may be denoted as E∩F.
E∩F={2,32} since they both have these two numbers in their sets. These two numbers will be put in the center in where the two circles meet.
The numbers that will be left in E (after removing 2 and 32) will be put in E's circle but not in F's and F would have nothing left.