private static int worms() {
        Scanner scanner = new Scanner(System.in);

        int n;
        int i, j, k;

        System.out.print("Введите n: ");
        n = scanner.nextInt();
        int[] a = new int[100];

        System.out.println("Введите длины червей всех видов(" + n + "):");
        for (i = 1; i <= n; i++) {
            a[i] = scanner.nextInt();
        }

        for (i = 1; i <= n; i++) {
            for (j = 1; j <= n; j++) {
                for (k = 1; k <= n; k++) {
                    if (a[i] == a[j] + a[k] && i != j && j != k && i != k) {
                        System.out.println(i + " " + j + " " + k);
                        return 0;
                    }
                }
            }
        }

        return -1;
    }