#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
using namespace std;
int n, k, c;
int p[510][6];
struct Partition {
vector<int> choice;
vector<int> best;
int cost;
Partition(vector<int> A): choice(A) {
vector<int> temp(k, 0);
int cnt = 0;
for (int i = 0; i < n; ++i) {
if (choice[i] == 1) {
best.push_back(i);
for (int j = 0; j < k; ++j) {
temp[j] = max(temp[j], p[i][j]);
}
cnt += 1;
}
}
for (int i = cnt; i < k; ++i) {
int mx = -1, id;
for (int j = 0; j < n; ++j) {
if (choice[j] == 0 and mx < p[j][i]) {
mx = p[j][i];
id = j;
}
}
choice[id] = 1;
best.push_back(id);
for (int j = 0; j < k; ++j) {
temp[j] = max(temp[j], p[id][j]);
}
}
for (int i = 0; i < k; ++i) choice[best[i]] = 0;
cost = accumulate(all(temp), 0);
}
bool operator <(Partition r) const{
return cost < r.cost;
}
};
int main() {
cin >> n >> k >> c;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < k; ++j) {
cin >> p[i][j];
}
}
priority_queue<Partition> Q;
Q.push(Partition(vector<int>(n, 0)));
while (c--) {
auto q = Q.top(); Q.pop();
if (c == 0) {
cout << q.cost << endl;
break;
}
if (count_if(all(q.choice),
[](int x) {return x >= 0;}) == k) {
continue;
}
for (int i = 0; i < k; ++i) {
vector<int> choice = q.choice;
vector<int> best = q.best;
choice[best[i]] = -1;
for (int j = 0; j < i; ++j) {
choice[best[j]] = 1;
}
Q.push(Partition(choice));
}
}
return 0;
}
