@root

#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int ys[100][100];
int hb[100][100],hb1[100][100];
int a[100][100];
int ans;
int main(){
	cin >> n >> m >> k;
	for (int i=1;i<=m;i++){
		for (int j=1;j<=m;j++){
			a[i][j]=1;
		}
	}
	for (int i=1;i<=m;i++){
		for (int j=1;j<=m;j++){
			cin >> hb[i][j];
			hb1[i][j]=1;
		}
	}
	for (int i=1;i<=k;i++){
		for (int j=1;j<=k;j++){
			cin >> ys[i][j];
		}
	}
	for (int i=1;i<=m;i++){
		for (int j=1;j<=m;j++){
			if (hb1[i][j]==1){
				a[i-1][j-1]=1;
				a[i-1][j+1]=1;
				a[i+1][j-1]=1;
				a[i+1][j+1]=1;
				a[i][j]=1;
				a[i-1][j]=1;
				a[i-2][j]=1;
				a[i][j-1]=1;
				a[i][j-2]=1;
				a[i][j+1]=1;
				a[i][j+2]=1;
				a[i+1][j]=1;
				a[i+2][j]=1;
			}
		}
	}
	ans=n*n;
	for (int i=1;i<=m;i++){
		for (int j=1;j<=m;j++){
			if (a[i][j]==1) ans--;
		}
 	}
	cout << ans << endl;
}