#include <iostream>
using namespace std;
int main(){
    int  n,v,w,max_v,max_w,res;cin>>n;
    int val[n],wgt[n];
    max_v = 0;
    max_w = 0;
    for(int i=0;i<n;i++){
        cin>>val[i]>>wgt[i];
        max_v+=val[i];
        max_w+=wgt[i];
    }
    cin>>res;
    int dp[max_v+1];
    for(int i=0;i<max_v+1;i++)dp[i]=max_w;
    dp[0]=0;
    for(int i=0;i<n;i++){
        v=val[i];
        w=wgt[i];
        dp[max_v] = min(dp[max_v],dp[max_v-v]+w);
        for(int j=max_v-1;j>=v;j--){
            dp[j] = min(dp[j],dp[j+1]);
            dp[j] = min(dp[j],dp[j-v]+w);
        }
        while(v>0&&dp[v-1]>dp[v]){
            dp[v-1] = dp[v];
            v--;
        }
    }
    dp[0]=1;
    cout<<dp[res]<<endl;
    if(max_w==dp[res]){
        cout<<"inf"<<endl;
    }else{
        cout<<dp[res+1]-1<<endl;
    }
}