//思考停止
#include <iostream>
#include <algorithm>
using namespace std;

int n;
int v[100], w[100];
int V;
int dp[101][101001];

int main() {
	cin >> n;
	for (int i = 0; i < n; i++) cin >> v[i] >> w[i];
	cin >> V;
	for (int i = 0; i <= n; i++) for (int j = 0; j <= 100000; j++) dp[i][j] = -11451419;
	
	dp[0][0] = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < 100000; j++) {
			dp[i + 1][j] = max(dp[i + 1][j], dp[i][j]);
			dp[i + 1][j + w[i]] = max(dp[i + 1][j + w[i]], dp[i][j] + v[i]);
		}
	}
	
	for (int i = 1; i <= 100000; i++) {
		dp[n][i] = max(dp[n][i - 1], dp[n][i]);
	}
	
	for (int i = 1; i <= 100000; i++) {
		if (dp[n][i] == V) {
			cout << i << endl;
			break;
		}
	}
	
	int sumV = 0;
	for (int i = 0; i < n; i++) sumV += v[i];
	if (sumV == V) { cout << "inf" << endl; return 0; }
	
	for (int i = 100000; i > 0; i--) {
		if (dp[n][i] == V) {
			cout << i << endl;
			break;
		}
	}
	return 0;
}