Equal Sums

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Equal_Sum {
    public static void main(String[] args) throws IOException {
        BufferedReader Buffer_sum = new BufferedReader(new InputStreamReader(System.in));

        String[] set_id = Buffer_sum.readLine().split(" ");
        int[] numbers = new int[Buffer_sum.readLine().length()];
        for (int i = 0; i < set_id.length; i++) {
            numbers[i] = Integer.parseInt(set_id[i]);
        }

        boolean hasEqual = false;

        for (int i = 0; i < numbers.length; i++) {
            int leftSum = 0;
            int rightSum = 0;
            for (int j = i - 1; j >= 0; j--) {
                leftSum += numbers[j];
            }
            for (int j = i + 1; j < numbers.length; j++) {
                rightSum += numbers[j];
            }
            if (leftSum == rightSum) {
                System.out.println(i);
                hasEqual = true;
                break;
            }
        }
        if(!hasEqual){
            System.out.println("no");
        }
    }
}