UNIQUE Function not working

Dear Experts,

                     I have a scenario , as below:-

Column A and Column B has values as below:-

In Cells, A14,B14 , I want the Count of the UNIQUE values of those columns, so A14== 2, B14==3,

I tried to use comb of COUNTIF and UNIQUE, but seems something is broken, or my logic seems not correct.

Secondly, in A15,B15 want to print the unique values( so A15== 0,1 ; B15 == 0,1,2)

I can use remove duplicated from data tab, but I don't want that as I need to use these cells output(A14/B14) further, without modifying the columns A and B, which this option of remove-duplicate does..

Thanks in Advance,

Br,

Anupam