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

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N, M, K;
    cin >> N >> M >> K;
    vector<int> used(K + 1, 0);
    used[0] = 1;
    vector<vector<int>> As(N, vector<int> (M, 0));
    for (auto & row: As){
        for (auto & a : row) cin >> a;
    }
    for (auto & row : As){
        vector<int> prev = used;
        for (auto & u : used) u = 0;
        for (auto a: row){
            for (int i = 0; i < K; ++i){
                if (i + a > K) break;
                if (prev[i] == 1) used[i + a] = 1;
            }
        }
    }
    for (int i = K; i > 0; --i){
        if (used[i]){
            cout << K - i << endl;
            return 0;
        }
    }
    cout << -1 << endl;
    return 0;
}