#include<iostream> using namespace std; int s[101]; int main(){ int m,b=0,n; cin>>n; for(int i=0;i<n;++i){ cin>>s[i];} cin>>m; for(int ii=1;ii<n;++ii){ if(m>=s[ii]){ b++; m-=s[ii];} } cout<<b; return 0;}