/*
	 * An array of size N is given. The array contains digits from 0 to 9. 
	 * Generate the maximum number using the digits in the array such that
it is divisible by 2, 3 and 5
	 *  
	 * input: {1,8,7,6,0}, output: 8160
	 * input: {7,7,7,6,}, output : none(-1)
	 *  
	 */