#include <bits/stdc++.h>
using namespace std;
using i64 = int_fast64_t;
using ui64 = uint_fast64_t;
#define REP(i, n) for (i64 (i) = 0; (i) < (n); ++(i))
#define FOR(i, a, b) for (i64 (i) = (a); (i) < (b); ++(i))

bool dp[12093], dp2[12093];

void f() {
    REP(i, 12093) {
        dp[i] = dp2[i];
        dp2[i] = false;
    }
}

signed main() {

    int N, M, K;
    cin >> N >> M >> K;

    dp[0] = true;
    REP(i, N) {
        REP(j, M) {
            int A;
            cin >> A;
            REP(i, 12000) {
                if (dp[i]) dp2[i + A] = true;
            }
        }
        f();
    }

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


}