private static int max(int[] array){
		int max = 0;
		for(int i = 0; i<array.length; i++){
			if(array[i]>max){
				max = array[i];
			}
		}
		return max;
	}

	private static int[] diffs(int[] array){
		int[] diffs = new int[array.length-1];
		int diff = 0;
		for(int i =0;i+1<array.length;i++){
			diff = array[i+1]-array[i];
			diffs[i]=diff;
		}
		return diffs;
	}