// #define DEBUGGING
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ALL(V) (V).begin(), (V).end()
#define ALLR(V) (V).rbegin(), (V).rend()

template <typename T> using V = vector<T>;
template <typename T> using VV = V<V<T>>;
using ll = int64_t;
using ull = uint64_t;
using PLL = pair<ll, ll>;

template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T> const T& clamp(const T &t, const T &low, const T &high) { return max(low, min(high, t)); }
template <typename T> void chclamp(T &t, const T &low, const T &high) { t = clamp(t, low, high); }

namespace init__ {

struct InitIO {
    InitIO() {
        cin.tie(nullptr);
        ios_base::sync_with_stdio(false);
        cout << fixed << setprecision(30);
    }
} init_io;

}

#ifdef DEBUGGING
// #include "../debug/debug.cpp"
#include "../../debug/debug.cpp"
#else
#define DEBUG(...) 0
#define DEBUG_SEPARATOR_LINE 0
#endif

template <typename T>
T make_v(T init) { return init; }

template <typename T, typename... Tail>
auto make_v(T init, size_t s, Tail... tail) {
#define rec make_v(init, tail...)
    return V<decltype(rec)>(s, rec);
#undef rec
}

const size_t size = 510;
bool dp[size];
bool dp_sub[size];

int main() {
    ll N, M, K;
    cin >> N >> M >> K;
    dp[0] = true;
    ll min_sum = 0;
    V<ll> A(M);
    while(N--) {
        fill(dp_sub, dp_sub + size, false);
        for(auto &&ele : A) cin >> ele;
        min_sum += A[0];
        for(ll e : A) {
            for(ll pre = K - e; 0 <= pre; pre--) {
                if(!dp[pre]) continue;
                dp_sub[pre + e] = true;
            }
        }
        swap(dp, dp_sub);
    }
    if(K < min_sum) {
        cout << -1 << endl;
    } else {
        for(ll i = K; 0 <= i; i--) {
            if(!dp[i]) continue;
            cout << K - i << endl;
            break;
        }
    }
    return 0;
}