#include <algorithm>
#include <iomanip>
#include <istream>
#include <map>
#include <numeric>
#include <ostream>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <cstring>

#define MAX_N 100
using namespace std;

const int M = 1000000007;
int n;
int w[MAX_N + 2], v[MAX_N + 2];
int dp[100000 + 2];
int V;

class Solution {
public:
    void solve(std::istream& in, std::ostream& out) {
        memset(dp, 0, sizeof(dp));
        in >> n;
        for (int i = 0; i < n; i++)
        {
            in >> v[i] >> w[i];
        }
        in >> V;
        fill(dp + 1, dp + 100001, M);
        for (int i = 0; i < n; i++)
        {
            for (int j = 100000; j > 0 ; j--)
            {
                if (j <= v[i])
                {
                    dp[j] = min(dp[j], w[i]);
                }
                else
                {
                    dp[j] = min(dp[j], dp[j - v[i]] + w[i]);
                }
            }
        }
        out << max(dp[V], 1) << endl;
        stringstream ss;
        ss << dp[V + 1] - 1;
        out << (dp[V + 1] < M ? ss.str() : "inf") << endl;
    }
};

void solve(std::istream& in, std::ostream& out)
{
    out << std::setprecision(12);
    Solution solution;
    solution.solve(in, out);
}

#include <fstream>
#include <iostream>

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    istream& in = cin;
    ostream& out = cout;
    solve(in, out);
    return 0;
}