I managed to do it using a simple sprite containing an instance variable called "Number" as a "brain" that obtained a random 1-3 via choose action and called on the box with that number in three events... the extra actions/events you see were a separate text box to bug test choose result to screen and to make the chosen text box spin around when chosen.
Pic:
https://drive.google.com/open?id=0Bx-ufu2WID53TV9PSnZWbG1lazQ
[quote:bci02l6p] How can you say not equal to in C2? I tried the symbol and didn't work
Use invert, right click the condition in the event and select the red X. It inverts the condition to a NOT state.