#include <iostream>

using namespace std;

int main() {
    int n,k,p;
    cin >> n >> k >> p;
    int arr[n*k];
    int cnt = 0;
    for (int i = 0;i < n*k;i++) {
        cin >> arr[i];
    }
    for (int i = 0;i < n;i++) {
        int cnt2 = 0;
        for (int j = 0;j < k;j++) {
            if (arr[i*k+j] == 0) {
                cnt2++;
            }
        }
        if (cnt2 < p) {
            cnt++;
        }
    }
    cout << cnt;
    return 0;
}