#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <queue>
#include <string>
#include <map>
#include <set>
#include <stack>
#include <tuple>
#include <deque>
#include <array>
#include <numeric>
#include <bitset>
#include <iomanip>
#include <cassert>
#include <chrono>
#include <random>
#include <limits>
#include <iterator>
#include <functional>
#include <sstream>
#include <fstream>
#include <complex>
#include <cstring>
#include <unordered_map>
using namespace std;

using ll = long long;
using P = pair<int, int>;
constexpr int INF = 1001001001;
constexpr int mod = 1000000007;
// constexpr int mod = 998244353;

template<class T>
inline bool chmax(T& x, T y){
    if(x < y){
        x = y;
        return true;
    }
    return false;
}
template<class T>
inline bool chmin(T& x, T y){
    if(x > y){
        x = y;
        return true;
    }
    return false;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, V;
    cin >> n;
    vector<int> v(n), w(n);
    for(int i = 0; i < n; ++i)  cin >> v[i] >> w[i];
    cin >> V;
    
    int MAX = 1000 * n;
    vector<int> dp(MAX + 1003), dp2(MAX + 1003);
    for(int i = 0; i < n; ++i){
        dp2 = dp;
        for(int j = 0; j <= MAX; ++j){
            chmax(dp2[j + w[i]], dp[j] + v[i]);
        }
        swap(dp, dp2);
    }

    int minans = -1, maxans = -1;
    for(int i = 1; i <= MAX + 1; ++i){
        if(dp[i] == V){
            maxans = i;
            if(minans == -1)    minans = i;
        }
    }

    cout << minans << '\n';
    if(maxans == MAX + 1)   cout << "inf\n";
    else    cout << maxans << '\n';

    return 0;
}