#include "bits/stdc++.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
long long count_rectangles(vector<vector<int>> ar){
int n=sz(ar),m=sz(ar[0]);
int64_t ans=0,a[n+5][m+5];
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) a[i][j]=ar[i-1][j-1];
for(int i=2;i<n;i++){
for(int j=2;j<m;j++){
if(a[i][j]>=a[i-1][j] || a[i][j]>=a[i][j-1]) continue;
for(int alt=i;alt<n;alt++){
vector<int64_t> mr(n+5,0);
for(int z=j;z<m;z++){
int64_t cl=0;
bool ok=1;
for(int k=i;k<=alt;k++){
mr[k]=max(mr[k],a[k][z]);
cl=max(cl,a[k][z]);
if(min(a[k][j-1],a[k][z+1])<=mr[k]) ok=0;
}
if(min(a[i-1][z],a[alt+1][z])<=cl) break;
ans+=ok;
}
}
}
}
return ans;
}
/*void _(){
int n,m;
cin >> n >> m;
int ans=0,a[n+5][m+5];
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) cin >> a[i][j];
for(int i=2;i<n;i++){
for(int j=2;j<m;j++){
if(a[i][j]>=a[i-1][j] || a[i][j]>=a[i][j-1]) continue;
for(int alt=i;alt<n;alt++){
vector<int> mr(n+5,0);
for(int z=j;z<m;z++){
int cl=0;
bool ok=1;
for(int k=i;k<=alt;k++){
mr[k]=max(mr[k],a[k][z]);
cl=max(cl,a[k][z]);
if(min(a[k][j-1],a[k][z+1])<=mr[k]) ok=0;
}
if(min(a[i-1][z],a[alt+1][z])<=cl) break;
ans+=ok;
}
}
}
}
cout << ans << '\n';
}
int32_t main(){
cin.tie(0); ios::sync_with_stdio(0);
int tc=1;//cin >> tc;
while(tc--) _();
return 0;
}*/
