U include natural numbers less than 10
first draw universal set box U
then draw diagram of D,include 3,4
then draw C,C include extra element 2 compared to D
so 2 will be ouside D and inside C
then draw B,B include extra element 5compared to C
so 5 will be ouside Cand inside B
then drawA',A' include extra elements 1 and 6 compared to B
so1 and 6 will be ousideB and inside A'
so only 7,8,9 are remaining
they are inside U and ou tside A'
so write them inside U and outside A'