#include <bits/stdc++.h>
using namespace std;

int main() {
    int n, m, K;
    cin >> n >> m >> K;
    vector<vector<int>> a(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a.at(i).at(j);
        }
    }

    vector<vector<bool>> dp(n + 1, vector<bool>(K + 1));
    dp.at(0).at(0) = true;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            for (int k = 0; k < K; k++) {
                if (!dp.at(i).at(k)) continue;

                if (k + a.at(i).at(j) <= K) dp.at(i + 1).at(k + a.at(i).at(j)) = true;
            }
        }
    }

    for (int i = K; i >= 0; i--) {
        if (dp.at(n).at(i)) {
            cout << K - i << endl;
            return 0;
        }
    }
    cout << -1 << endl;
}