#include <bits/stdc++.h>

#define int long long

using namespace std;

int a[200100];
int b[200100];

signed main()
{
    int _;
    cin >> _;
    while(_--)
    {
        int n;
        cin >> n;
        int mx = 0;
        for(int i = 0; i < n; i++)
        {
            cin >> a[i];
        }
        b[0] = 0;
        for(int i = 1; i < n; i++)
        {
            if(a[i] > a[i - 1])
            {
                b[i] = b[i - 1] + 1;
            }
            else if(a[i] < a[i - 1])
            {
                b[i] = b[i - 1] - 1;
            }
            else
            {
                b[i] = b[i - 1];
            }
            mx = max(mx, b[i]);
        }
        int ans = 0;
        for(int i = 0; i < n; i++)
        {
            ans += mx - b[i];
        }
        cout << ans << endl;
    }
    return 0;
}