#include <iostream>

using namespace std;
using LL = long long;
using ULL = unsigned long long;

bool dp[11][551];
int A[11][11];

int main() {
    int N, M, K;
    cin >> N >> M >> K;

    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= M; j++) {
            cin >> A[i][j];
        }
    }

    dp[0][0] = true;
    for (int i = 1; i <= N; i++) {
        for (int j = 0; j <= K; j++) {
            if (dp[i - 1][j]) {
                for (int k = 1; k <= M; k++) {
                    dp[i][j + A[i][k]] = true;
                }
            }
        }
    }

    int ans = -1;
    for (int i = K; i >= 0; i--) {
        if (dp[N][i]) {
            ans = K - i;
            break;
        }
    }

    cout << ans << endl;
}