public class whatTest {

public static int what (int a[]) {
		int max = a[0];
		int pos = 0;
		int sum = 0;
		while (pos < a.length) {
			sum += a[pos];
			if (sum > max)
				max = sum;
			if (sum < 0)
				sum = 0;
			pos ++;
		}
		return max;
	}

	public static void main (String args[]) {
		int a[] = {5,3,-10,7,5,-3,4};
		System.out.println (what(a));

	}

}