Driver Code
static public void Main ( ) { GFG . root1 = new Node ( 3 ) ; GFG . root1 . left = new Node ( 1 ) ; GFG . root1 . right = new Node ( 5 ) ; GFG . root2 = new Node ( 4 ) ; GFG . root2 . left = new Node ( 2 ) ; GFG . root2 . right = new Node ( 6 ) ;