#include "bits/extc++.h"
using namespace std;
template <typename T>
void dbgh(const T& t) {
cerr << t << endl;
}
template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
cerr << t << " | ";
dbgh(u...);
}
#ifdef DEBUG
#define dbg(...) \
cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
<< ": "; \
dbgh(__VA_ARGS__)
#else
#define cerr \
if (false) \
cerr
#define dbg(...)
#endif
#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())
const int maxn = 505;
vector<int> ans;
int n, m, arr[maxn][6];
void dfs(int ind, int cur, array<int, 6> copt) {
if (ind == m) {
ans.push_back(accumulate(copt.begin(), copt.begin() + m, 0));
return;
}
for (int i = cur; i < n; i++) {
auto tmp = copt;
for (int j = 0; j < m; j++) {
tmp[j] = max(tmp[j], arr[i][j]);
}
dfs(ind + 1, i + 1, tmp);
}
}
void solve() {
int k;
cin >> n >> m >> k;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
cin >> arr[i][j];
}
}
dfs(0, 0, {});
k--;
nth_element(begin(ans), ans.begin() + k, end(ans), greater<>());
cout << ans[k] << endl;
}
int main() {
cin.tie(nullptr);
ios_base::sync_with_stdio(false);
cin.exceptions(ios::failbit);
solve();
}
