Dynamic 3D Text

I have a word game that require random position for dynamic 3D Text with different text color ,font size and string. How can I get last position of X and Y so that the 3D Text will not overlap each other.

okay hoping you have the script for randomizing positions

i have given an example below

function Update(){
//Randomizing position,colo,etc
if(obj1.position != obj2.position){
//then your code for placing another object
}

} 

if you want a complete script please do ask