Need to find a data in a column and copy below cell data or add

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hirdesh_saxena Posts 3 Registration date Wednesday March 9, 2016 Status Member Last seen March 14, 2016 - Mar 9, 2016 at 11:32 AM
column A column B column c
1......................... .........2
2.............. 23
3
2............... 25
5

want to use a excel function in column B
if find 2 in columnA which is a value in columnC (c1) then copy below cell data and make it 23 or 25 respectively for example in column B