I urgently need to create a new table based on the model below.
It is possible?

Input Table

Column A Column B Column C
Pool A 2 Owner A
Pool A 1 Owner A
Pool A 4 Owner B
Pool A 5 Owner C
Pool B 10 Owner Z
Pool B 12 Owner X
Pool B 3 Owner X
Pool C 1 Owner A
Pool D 1 Owner A
Pool A 2 Owner C

Output Table

Pool A Owner A 3
Pool A Owner B 4
Pool A Owner C 7
Pool B Owner Z 10
Pool B Owner X 15
Pool C Owner A 1
Pool D Owner A 1