Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to play angry birds [title] Download the game to your phone, ipod, tablet or computer. [step] There are both free and paid versions of angry birds, plus an occasional seasonal special. Try the free version first; that way you can determine whether you even enjoy the game or not (it's very likely that you will).

Ending1: [title] Understand what you're trying to do. [step] The goal in each level is to get rid of the pigs. Ending2: If you choose a paid version, follow the device's instructions. Otherwise, there is no point in playing with it over and over again. Ending3: Read reviews for different game types to further determine if the game makes you happy or bored. [title] Connect your phone to your computer and go for a walk. Ending4: [title] Make sure you have an active phone. [step] As a player, you will need to carry around smartphones with you at all times.

Answer format: ending1/ending2/ending3/ending4