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

int main() {
  ios::sync_with_stdio(false);

  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[i][j];
      }
    }
  }

  vector<vector<int>> d(N + 1, vector<int>(K + 1)); {
    d[0][K] = 1;
    for (int i = 0; i < N; ++i) {
      for (int j = 0; j <= K; ++j) {
        for (int a : A[i]) {
          if (j >= a) d[i + 1][j - a] |= d[i][j];
        }
      }
    }
  }

  for (int i = 0; i <= K; ++i) if (d[N][i]) {
    cout << i << endl;
    return 0;
  }

  cout << -1 << endl;
}