#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define endl "\n"

const long long INF = (long long)1e18;
const long long MOD = 1'000'000'007; 

string yn(bool f){return f?"Yes":"No";}
string YN(bool f){return f?"YES":"NO";}



signed main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	
	const int MAX = 1000;
	int N, M, K;
	static int dp[12][MAX];
	
	cin>>N>>M>>K;
	
	dp[0][0] = true;
	
	for(int i = 0; i < N; i++){
		for(int j = 0; j < M; j++){
			int a;
			cin>>a;
			for(int k = 0; k < MAX; k++){
				if(dp[i][k]) dp[i+1][k+a] = true;
			}
		}
	}
	
	for(int i = K; i > 0; i--){
		if(dp[N][i]){
			cout<<K-i<<endl;
			return 0;
		}
	}
	cout<<-1<<endl;
	
	return 0;
}