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//#pragma GCC optimize("Ofast", "unroll-loops")
//#pragma GCC target("sse", "sse2", "sse3", "ssse3", "sse4")

#include <bits/stdc++.h>

#define all(a) a.begin(),a.end()
#define len(a) (int)(a.size())
#define mp make_pair
#define pb push_back
#define fi first
#define se second

using namespace std;

typedef pair<int, int> pii;
typedef long long ll;
typedef long double ld;
template<class T>
using vec = vector<T>;

template<typename T>
bool umin(T &a, T b) {
    if (b < a) {
        a = b;
        return true;
    }
    return false;
}
template<typename T>
bool umax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

#ifdef KoRoVa
#define DEBUG for (bool _FLAG = true; _FLAG; _FLAG = false)
#define LOG(...) print(#__VA_ARGS__" ::", __VA_ARGS__) << endl
template <class ...Ts> auto &print(Ts ...ts) { return ((cerr << ts << " "), ...); }
#else
#define DEBUG while (false)
#define LOG(...)
#endif

const int max_n = 3e5 + 11, inf = 1000111222;


ll b[max_n];

const ll linf = inf * 1ll * inf;


int main() {
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);

    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, m, k;
    cin >> n >> m >> k;
    vector <vector <ll> > a(n, vector <ll> (m));
    int sum = 0;
    vector <int> ids;
    ids.reserve(n);
    for (int i = 0; i < n; i++) {
        bool dec = true;
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
            if (j && a[i][j] > a[i][j - 1]) {
                dec = false;
            }
        }
        if (dec) {
            for (int j = 0; j < m; j++) {
                b[sum++] = a[i][j];
            }
        }
        else {
            for (int j = 1; j < m; j++) {
                a[i][j] += a[i][j - 1];
            }
            ids.pb(i);
        }
    }
    sort(b, b + sum);
    reverse(b, b + sum);
    sort(all(ids), [&] (int i, int j) {
        return a[i].back() > a[j].back();
    });
    ll full = 0;
    vector <ll> res(n * m + 1);
    vector <ll> pref(m, -linf);
    vector <vector <ll> > mx(len(ids), vector <ll> (m, -linf));

    for (int i = len(ids) - 1; i >= 0; i--) {
        for (int j = 0; j < m; j++) {
            mx[i][j] = a[ids[i]][j];
            if (i + 1 < len(ids)) {
                umax(mx[i][j], mx[i + 1][j]);
            }
        }
    }
    for (int i = 0; i < len(ids); i++) {
        int now = m * i;
        umax(res[now], full);
        ll nxt = a[ids[i]].back();
        for (int j = 1; j <= m; j++) {
            res[now + j] = full + max(mx[i][j - 1], pref[j - 1] + nxt);
        }
        full += a[ids[i]].back();
        for (int j = 0; j < m; j++) {
            umax(pref[j], a[ids[i]][j] - a[ids[i]].back());
        }
    }
    for (int i = 1; i < len(res); i++) {
        umax(res[i], res[i - 1]);
    }
    ll ans = 0, now = 0;
    for (int i = 0; i <= k; i++) {
        umax(ans, res[k - i] + now);
        if (i < sum) {
            now += b[i];
        }
//        LOG(i, res[i]);
    }
    cout << ans << '\n';
}

/*
KoRoVa!
*/