#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    ifstream fin("tsunami.in");
    ofstream fout("tsunami.out");
    int N,M,H,i,j,a[1001][1001],t=0;
    fin>>N>>M>>H;
    for(i=1;i<=N;i++)
        for(j=1;j<=M;j++)
    {
        fin>>a[i][j];
    }
    for(i=1;i<=N;i++)
        for(j=1;j<=M;j++)
    {
        if(a[i][j]<H && (a[i-1][j]==0 || a[i+1][j]==0 || a[i][j-1]==0 || a[i][j+1]==0))
        {
            t++;
        }
    }
    fout<<t;
    fin.close();
    fout.close();
    return 0;
}