How to compare two fields from two different searches and display results field not exist?

I am running 2 different searches and have to compare the each value in one field with the values in the other field. The display result should show field A values which does not exist in field B. given data: Field A: 1111 2222 2424 3333 4444 Field B: 3333 1111 4444 3344 Results should be something like this table: Field A -- 2222 2424