/*
Code by @marlov
*/
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <string>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <utility>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <stack>
#include <queue>
#include <iterator>
#include <bitset>
using namespace std;
typedef long long ll;
typedef pair<int,int> pi;
long long count_rectangles(vector< vector<int> > a){
int N=a.size();
int M=a[0].size();
int result=0;
bool cols[N][M][M];
bool rows[M][N][N];
for(int i=1;i<N-1;i++){
for(int j=1;j<M-1;j++){
int cm=0;
for(int k=j;k<M-1;k++){
cm=max(cm,a[i][k]);
if(cm>a[i][j-1]&&cm<a[i][k+1]) cols[i][j][k]=true;
else cols[i][j][k]=false;
}
}
}
for(int i=1;i<N-1;i++){
for(int j=1;j<M-1;j++){
for(int k=j;k<M-1;k++){
int tr=0;
while(rows[i][j][k]){
bool pc=true;
for(int x=j;x<=k;x++){
if(!rows[x][i][i+tr]) pc=false;
}
if(pc) result++;
tr++;
}
}
}
}
return result;
}
/*
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cout<<count_rectangles( {{4, 8, 7, 5, 6}},{7, 4, 10, 3, 5},{9, 7, 20, 14, 2},{9, 14, 7, 3, 6},{5, 7, 5, 2, 7},{4, 5, 13, 5, 6}} );
return 0;
}
*/
/* stuff you should look for
* int overflow, array bounds
* special cases (n=1,n=0?)
* do smth instead of nothing and stay organized
*/
