Highway 201 is the most busy street in Rockport. Traffic cars cause a lot of hindrances to races, especially when there are a lot of them. The track which passes through this highway can be divided into n sub-tracks. You are given an array a where a_i represents the number of traffic cars in the i-th sub-track. You define the inconvenience of the track as ∑_{i=1}^{n} ∑_{j=i+1}^{n} \lvert a_i-a_j\rvert, where |x| is the absolute value of x. 

You can perform the following operation any (possibly zero) number of times: choose a traffic car and move it from its current sub-track to any other sub-track.

Find the minimum inconvenience you can achieve.

Input

The first line of input contains a single integer t (1≤ t≤ 10 000) — the number of test cases.

The first line of each test case contains a single integer n (1≤ n≤ 2⋅ 10^5).

The second line of each test case contains n integers a_1, a_2, …, a_n (0≤ a_i≤ 10^9).

It is guaranteed that the sum of n over all test cases does not exceed 2⋅ 10^5.

Output

For each test case, print a single line containing a single integer: the minimum inconvenience you can achieve by applying the given operation any (possibly zero) number of times.

Example

Input


3
3
1 2 3
4
0 1 1 0
10
8 3 6 11 5 2 1 7 10 4


Output


0
4
21

Note

For the first test case, you can move a car from the 3-rd sub-track to the 1-st sub-track to obtain 0 inconvenience.

For the second test case, moving any car won't decrease the inconvenience of the track.
import java.io.*;
import java.util.StringTokenizer;

import static java.lang.Double.parseDouble;
import static java.lang.Integer.compare;
import static java.lang.Integer.parseInt;
import static java.lang.Long.parseLong;
import static java.lang.System.in;
import static java.lang.System.out;
import static java.util.Arrays.asList;
import static java.util.Collections.max;
import static java.util.Collections.min;

public class Main {
    private static final int MOD = (int) (1E9 + 7);
    private static final int INF = (int) (1E9);
    static FastScanner scanner = new FastScanner(in);

    public static void main(String[] args) throws IOException {
        // Write your solution here
        StringBuilder answer = new StringBuilder();
        int t = 1;
        t = parseInt(scanner.nextLine());
        while (t-- > 0) {
            answer.append(solve()).append("\n");
        }
        out.println(answer);
    }

    private static Object solve() throws IOException {
        int n = scanner.nextInt();
        int[] a = new int[n];
        long sum = 0L;
        for (int i = 0; i < n; i++) {
            a[i] = scanner.nextInt();
            sum += a[i];
        }
        long d = sum % n;
        return  d * ((long) n - d);
    }

    private static int maxx(Integer... a) {
        return max(asList(a));
    }

    private static int minn(Integer... a) {
        return min(asList(a));
    }

    private static long maxx(Long... a) {
        return max(asList(a));
    }

    private static long minn(Long... a) {
        return min(asList(a));
    }

    private static int add(int a, int b) {
        long res = ((long) (a + MOD) % MOD + (b + MOD) % MOD) % MOD;
        return (int) res;
    }

    private static int mul(int a, int b) {
        long res = ((long) a % MOD * b % MOD) % MOD;
        return (int) res;
    }

    private static int pow(int a, int b) {
        a %= MOD;
        int res = 1;
        while (b > 0) {
            if ((b & 1) != 0)
                res = mul(res, a);
            a = mul(a, a);
            b >>= 1;
        }
        return res;
    }

    private static int gcd(int a, int b) {
        if (b == 0)
            return a;
        return gcd(b, a % b);
    }

    private static int lcm(int a, int b) {
        return (a / gcd(a, b)) * b;
    }

    private static class Pair implements Comparable<Pair> {
        int index, value;

        public Pair(int index, int value) {
            this.index = index;
            this.value = value;
        }

        public int compareTo(Pair o) {
            if (value != o.value) return compare(value, o.value);
            return compare(index, o.index);
        }
    }

    static class FastScanner {
        BufferedReader br;
        StringTokenizer st;

        FastScanner(File f) {
            try {
                br = new BufferedReader(new FileReader(f));
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
        }

        FastScanner(InputStream f) {
            br = new BufferedReader(new InputStreamReader(f));
        }

        String nextLine() {
            try {
                return br.readLine();
            } catch (IOException e) {
                return null;
            }
        }

        String next() {
            while (st == null || !st.hasMoreTokens()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return parseInt(next());
        }

        long nextLong() {
            return parseLong(next());
        }

        double nextDouble() {
            return parseDouble(next());
        }

    }
}