In a recent survey of 100 persons, the following information was gathered:

59 use shampoo A.
51 use shampoo B.
35 use shampoo C.
24 use shampoos A and B.
19 use shampoos A and C.
13 use shampoos B and C.
11 use all three.

Let 

A = {persons who use shampoo A}
B = {persons who use shampoo B}
C= {persons who use shampoo C}

Use a Venn diagram to show how many persons are in each of the eight possible categories.