include

include

using namespace std; int main() {

int w, s;
cin >> w >> s;
int x, y;
cin >> x >> y;
vector<int>a(x * w + 1);
for (int i = 1;i < x * w + 1;i++) {
    int a1;
    cin >> a1;
    a[i] = a1;
}

vector<int>b(s * x + 1);
for (int i = 1;i < s * x + 1;i++) {
    int b1;
    cin >> b1;
    b[i] = b1;
}
for (int i = 0;i < w;i++) {
    for (int j = 1;j <= x;j++) {
        for (int l = 0;l < s;l++) {
            a[j + i * x] = a[j + i * x] - b[j + l * s];
        }
        if (a[j + i * x] < y) {
            a[j + i * x] = y;
        }
        cout << a[j + i * x];
        if (j == x) {
            cout << endl;
        }
        else {
            cout << " ";
        }
    }
}
return 0;

}