#include <iostream>
#include <vector>
using namespace std;
int main(){
	int N, M, K;
	cin >> N >> M >> K;
	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];
		}
	}
	vector<vector<bool>> dp(N + 1, vector<bool>(K + 1, false));
	dp[0][K] = true;
	for (int i = 0; i < N; i++){
		for (int j = 0; j <= K; j++){
			if (dp[i][j]){
				for (int k = 0; k < M; k++){
					if (j >= A[i][k]){
						dp[i + 1][j - A[i][k]] = true;
					}
				}
			}
		}
	}
	for (int i = 0; i <= K; i++){
		if (dp[N][i]){
			cout << i << endl;
			return 0;
		}
	}
	cout << -1 << endl;
}