import java.io.*;
import java.util.*;


public class Main_yukicoder527 {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		final int INF = Integer.MAX_VALUE / 2;

		int n = sc.nextInt();

		int[] v = new int[n];
		int[] w = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
			w[i] = sc.nextInt();
		}

		int vv = sc.nextInt();

		int[] dp = new int[100_000 + 1];
		Arrays.fill(dp, INF);
		dp[0] = 0;
		for (int i = 0; i < n; i++) {
			for (int j = 100_000 - v[i]; j >= 0; j--) {
				if (dp[j] == INF) {
					continue;
				}

				dp[j + v[i]] = Math.min(dp[j + v[i]], dp[j] + w[i]);
			}
		}

		int max = INF;
		for (int i = vv + 1; i <= 100_000; i++) {
			max = Math.min(max, dp[i]);
		}

		pr.println(Math.max(1, dp[vv]));
		if (max == INF) {
			pr.println("inf");
		} else {
			pr.println(max - 1);
		}
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);

		solve();

		pr.close();
		sc.close();
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}