#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  int n, m, k; cin >> n >> m >> k;
  bitset<1000> bs;
  bs[0] = 1;
  while (n--) {
    bitset<1000> nbs;
    for (int _ = 0; _ < m; ++_) {
      int a; cin >> a;
      nbs |= bs << a;
    }
    swap(bs, nbs);
  }
  for (int x = k; x >= 0; --x) if (bs[x]) {
    return cout << k - x << '\n', 0;
  }
  return cout << -1 << '\n', 0;
}