#include <iostream>
#include <algorithm>
#include <string>
using namespace std;
 
 
 /*
N≤100
1≤vi,wi≤10001≤vi,wi≤1000
0≤V≤100000
*/

// 番号　重さ　=　価値
int dp[101][1000100] = {};
int main(void){
    
    int n;
    cin >> n;
    
    for(int i = 0; i < n; i++)
        for(int j = 0; j < 1000100; j++)
            dp[i][j] = -1;
    
    
    dp[0][0] = 0;
    
    for(int i = 0; i < n; i++){
        int v,w;
        cin >> v >> w;
        
        for(int j = 1000099; j >= 0; j --){
            if(dp[i][j] != -1 && j + w < 1000099){
                dp[i+1][j+w] = max(v + dp[i][j],dp[i+1][j+w]);
                dp[i+1][j] = max(dp[i][j],dp[i+1][j]);
                //cout << j+w << endl;
            }
        }
    }
    int V,Max = 0,Min = 1000100;
    cin >> V;
    
    for(int j = 0; j < 1000100; j++){
        
        dp[n][j+1] = max(dp[n][j+1],dp[n][j]); 
        
        if(dp[n][j] == V){
            Max = max(Max,j);
            Min = min(Min,j);
        }
    }
    
    cout << max(Min,1) << endl;
    if(Max > 1000000) 
    cout << "inf" << endl;
    else 
    cout << Max << endl; 
    
}