import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int n = Integer.parseInt(sa[0]);
		int m = Integer.parseInt(sa[1]);
		int k = Integer.parseInt(sa[2]);
		int[][] a = new int[n][m];
		for (int i = 0; i < n; i++) {
			sa = br.readLine().split(" ");
			for (int j = 0; j < m; j++) {
				a[i][j] = Integer.parseInt(sa[j]);
			}
		}
		br.close();

		boolean[][] b = new boolean[n + 1][k + 1];
		b[0][k] = true;
		for (int i = 0; i < n; i++) {
			for (int j = 0; j <= k; j++) {
				if (b[i][j]) {
					for (int j2 = 0; j2 < m; j2++) {
						if (j >= a[i][j2]) {
							b[i + 1][j - a[i][j2]] = true;
						}
					}
				}
			}
		}
		for (int j = 0; j <= k; j++) {
			if (b[n][j]) {
				System.out.println(j);
				return;
			}
		}
		System.out.println(-1);
	}
}