Driver code
public static void Main ( String [ ] args ) { Node root = new Node ( 1 ) ; root . left = new Node ( 2 ) ; root . right = new Node ( 3 ) ; root . left . left = new Node ( 4 ) ; root . left . right = new Node ( 5 ) ; root . right . left = new Node ( 6 ) ; root . right . right = new Node ( 7 ) ; root . left . right . left = new Node ( 8 ) ; root . right . left . right = new Node ( 9 ) ; int n1 = 4 , n2 = 8 ; printCommonPath ( root , n1 , n2 ) ; } }