#include "bits/stdc++.h"

#define rep(a,b) for(int a = 0;a < b;a++)
#define REP(i, x, n) for(int i = x; i < n; i++)
#define P(a) cout << a << endl
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
int dx[] = { 1, -1 , 0 , 0 };
int dy[] = { 0,  0,  1, -1 };
ll MOD = 1000000007;
unsigned long long str_to_int(std::string str) {
	unsigned long long ret;
	std::stringstream ss; ss << str;
	ss >> ret;
	return ret;
}

int main() {
	int n,V,sum = 0;
	cin >> n;
	vector<int> v(n), w(n);
	rep(i, n) {
		cin >> v[i] >> w[i];
		sum += w[i];
	}
	cin >> V;
	vector<int> dp(sum+1, -1);
	dp[0] = 0;
	for (int i = 0; i < n; i++) {
		for (int j = sum; j >= 0; j--) {
			if (dp[j] != -1) {
				dp[j + w[i]] = max(dp[j + w[i]], dp[j] + v[i]);
			}
		}
	}
	int buf;
	rep(i, sum + 1) {
		if (dp[i] != -1) {
			buf = dp[i];
		}
		else {
			dp[i] = buf;
		}
	}
	int minans = 1e9, maxans = -1;
	for (int i = 1; i <= sum; i++) {
		if (dp[i] == V) {
			maxans = max(maxans, i);
			minans = min(minans, i);
		}
	}
	P(minans);
	if (dp[sum] == V) {
		P("inf");
	}
	else {
		P(maxans);
	}
}