[Solved] How can i do this?

I have 1 Sprite (Balloons) which creating every 1 second at different position with different scale and always moving to upside with different speed.

I have 1 more sprite (Alphabets) which I have positioned over the Balloon Sprite with same scale, same position ( I pinned this over balloon So I will move together with balloon.

Everything is working fine except one problem.

Sometime balloons overlaps each other then Alphabet sprite shows over the another balloon (as you can see in image below.

How can i do this?

Something like this ?

http://www.sizzle-games.com/numbers.c3p

Thank you so much this is exactly what i want and now i learned something new before now I never used Containers and was never know about how to use it. Today with help of you I now understand the power of containers.

Thank you again.