#include<iostream>
#include<cstdio>
#include<cmath>
#include<cstring>
#include<string>
#include<stack>
#include<queue>
#include<vector>
#include<algorithm>
#include<iomanip>
#include<cassert>
typedef long long int ll;
using namespace std;
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define REP(i,n) for (int i=0;i<(n);i++)
#define EREP(i,n) for (int i=1;i<=(n);i++)
const int MOD = 1000000007;
const int INF = 1000000;
#define EVEL 1
#ifndef EVEL
#define DEB(X) cout << #X << ":" <<X<<" " ;
#define TF(f) f ? cout<<"true  " : cout<<"false ";
#define END cout<<"\n";
#else
#define DEB(X) {X=X;}
#define TF(f) {f=f;}
#define END {}
#endif

ll dp[100010];
bool vis[110][110];
ll N,v,w,V;
ll fr=-1,bk=100000000007;
ll sum;



int main(){
    ios::sync_with_stdio(false);
    cin>>N;
    REP(i,100010)dp[i]=bk;
    REP(i,N){
        cin>>v>>w;
        for(int j=100010-1;j>v;j--)
            dp[j]=min(dp[j],dp[j-v]+w);
        for(int j=v;j>0;j--)
            dp[j]=min(dp[j],w);
    }
    cin>>V;
    dp[V]>0&&dp[V]!=bk?cout<<dp[V]:cout<<"1";
    cout<<endl;
    dp[V+1]<bk?cout<<dp[V+1]-1:cout<<"inf";
    cout<<endl;
}