Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use measureit on tango [title] Download the " measureit " app. [step] You can do this from the google play store. [title] Tap the measureit app to open measureit.

Ending1: [title] Tap with your thumb to open the app. [title] Download the gazkui puppy version of measureit. Ending2: [step] Measureit is the app that you can download from rocketship. [substeps] You can play measureit using another webcam app. Ending3: [step] Measureit allows you to connect two points in space and measure the distance between them, effectively serving as a ruler. [title] Place measureit's crosshair over your starting point. Ending4: [step] You can play with this app for a short time, then shut down the app and view the results at the bottom of the screen. [title] Tap the " from " switch to the right of measureit.

Answer format: ending1/ending2/ending3/ending4