#include "rect.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef vector<int> vi;
typedef vector<pi> vpi;
const int MOD = 1000000007;
#define ins insert
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define all(x) begin(x), end(x)
const int mx = 2505;
int n, m;
ll count_rectangles(vector<vi> a){
n = sz(a);
m = sz(a[0]);
ll ans = 0;
for(int x1 = 1; x1+1 < sz(a); x1++){
for(int y1 = 1; y1+1 < sz(a[0]); y1++){
for(int x2 = x1; x2+1 < sz(a); x2++){
for(int y2 = y1; y2+1 < sz(a[0]); y2++){
bool works = 1;
for(int i = x1; i <= x2; i++){
for(int j = y1; j <= y2; j++){
if(a[i][j] >= min(a[i][y1-1], min(a[i][y2+1], min(a[x1-1][j], a[x2+1][j])))) works = 0;
}
}
if(works) ans++;
}
}
}
}
return ans;
}
