#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif
#include <chrono>
#include <unistd.h>
using namespace std;
using namespace chrono;
#define rep(i, n) for (ll i = 0; i < (n); ++i)
#define rep1(i, n) for (ll i = 1; i <= (n); ++i)
#define rrep(i, n) for (ll i = n; i > 0; --i)
#define bitrep(i, n) for (ll i = 0; i < (1 << n); ++i)
#define all(a) (a).begin(), (a).end()
#define yesNo(b) ((b) ? "Yes" : "No")
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using mint = modint998244353;
using MINT = modint1000000007;
string alphabet = "abcdefghijklmnopqrstuvwxyz";
string ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
constexpr double pi = 3.141592653589793;
constexpr ll smallMOD = 998244353;
constexpr ll bigMOD = 1000000007;
constexpr ll dx[] = {1, 0, -1, 0, 1, -1, -1, 1};
constexpr ll dy[] = {0, 1, 0, -1, 1, 1, -1, -1};
struct Init
{
    Init()
    {
        ios::sync_with_stdio(0);
        cin.tie(0);
        cout << fixed << setprecision(15);
    }
} init;
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &vec)
{
    os << "[";
    rep(i, vec.size())
    {
        os << vec[i];
        if (i != vec.size() - 1)
            os << ", ";
    }
    os << "]";
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &vec)
{
    os << "[";
    rep(i, vec.size())
    {
        os << vec[i];
        if (i != vec.size() - 1)
            os << ", ";
    }
    os << "]";
    return os;
}

// graph_template
struct Edge
{
    ll to;
    ll cost;
    Edge(ll to, ll cost) : to(to), cost(cost) {}
    bool operator>(const Edge &e) const
    {
        return cost > e.cost;
    }
};

int main()
{
    ll n, m, k;
    cin >> n >> m >> k;
    vector<vector<ll>> mp(n, vector<ll>(m, 0));
    rep(i, n)
    {
        rep(j, m)
        {
            cin >> mp[i][j];
        }
    }
    // 右にm個、下にn個移動したときのパス.
    vector<vector<vector<ll>>> dp(n, vector<vector<ll>>(m, vector<ll>()));
    dp[0][0] = {mp[0][0]};
    rep1(i, n - 1)
    {
        vector<ll> tmp = dp[i - 1][0];
        tmp.push_back(mp[i][0]);
        sort(all(tmp));
        dp[i][0] = tmp;
    }
    rep1(j, m - 1)
    {
        vector<ll> tmp = dp[0][j - 1];
        tmp.push_back(mp[0][j]);
        sort(all(tmp));
        dp[0][j] = tmp;
    }
    rep(i, n)
    {
        rep(j, m)
        {
            if (i == 0 || j == 0)
                continue;
            vector<ll> tmp1 = dp[i - 1][j];
            vector<ll> tmp2 = dp[i][j - 1];
            ll addNum = mp[i][j];
            tmp1.push_back(addNum);
            tmp2.push_back(addNum);
            sort(all(tmp1));
            sort(all(tmp2));
            ll t1 = 1e9, t2 = 1e9;
            rep(i, tmp1.size())
            {
                if (i < k)
                    break;
                t1 = min(t1, tmp1[i]);
                t2 = min(t2, tmp2[i]);
            }
            if (t1 > t2)
            {
                dp[i][j] = tmp1;
            }
            else
            {
                dp[i][j] = tmp2;
            }
        }
    }
    vector<ll> last = dp[n - 1][m - 1];
    sort(all(last));
    rep(i, k)
    {
        if (i >= last.size())
            break;
        last[i] = 1e9;
    }
    cout << *min_element(all(last)) << endl;
    return 0;
}