if you were stranded on a island what three things would you bring?

If i was stranded at a island and they said i can only take 3 things that would be supper hard.
The first thing i would bring with me is my cellphone .It would help me stay in touch with my family since they can't be with me.My phone would have Internet access and instance message.Also it would run on solar energy so it would have to be out in the sun for a long time.Another feature is that it can't be broken.Second i would bring with me a gun in case of an emergence .In case a puma or big animal would try to come near me i would scare it off or kill it .Also to scare other people that might want to take my stuff.My last choice would be to bring with me is a inflatable bed.I can use it in two ways,1st use it to sleep,second it could be used as a bout to go out and catch fish near the cost.I think all those things would help me to survive for a long time .