#include<bits/stdc++.h>
using namespace std;
#define fs first
#define sc second
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define ALL(A) A.begin(),A.end()
#define RALL(A) A.rbegin(),A.rend()
typedef long long LL;
typedef pair<LL,LL> P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<typename T> T gcd(T a,T b){return b?gcd(b,a%b):a;}
const LL mod=1000000007;
const LL LINF=1LL<<62;
const int INF=1<<30;
int dx[]={1,0,-1,0,1,-1,1,-1};
int dy[]={0,1,0,-1,1,-1,-1,1};
 

int main(){
    int n,m,k;cin >> n >> m >> k;
    vector<vector<int>> dp(n+1,vector<int> (k+1,0));
    vector<vector<int>> a(n,vector<int> (m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
    dp[0][0] = 1;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            for (int l = 0; l < k; l++) {
                if(l + a[i][j] <= k) dp[i+1][l+a[i][j]] |= dp[i][l];
            }
        }
    }
    for (int i = k; i >= 0; i--) {
        if(dp[n][i]){
            cout << k - i << endl;
            return 0;
        }
    }
    cout << -1 << endl;
    return 0;
}