Income tax calculation on capital gains from stocks

Hello Experts, Please clear my doubt regarding Capital Gains calculation from shares:- Suppose I have Bought and Sold 3 Shares in FY 2015-16(Not Intraday), They are as follows:-

S.No. Scrip Buy Price Buy Qty Buy Value Sell Price Sell Qty Sell Value Profit/Loss

1.      A       100          50          5000        120           50          6000        +1000

2.      B        200         50          10000       100          50           5000        -5000

3.      C        500         50           25000       600         50           30000       +5000

In the above scenario, how will I calculate my Capital Gains whether it is (+1000-5000+5000=+1000) or is it (+1000+5000=+6000 and I have to adjust loss in the appropriate place?) Please answer. Thanks in advance.