#include
using namespace std;
int main() {
int N;
cin>>N;
if(N>0){
//cout<<"\n";
cout <<N;
cout<<"\n";
}
int cs = N;
while(cs>0)
{
int t ;
cin >> t ;
cs += t ;
//cout<<"\n";
if(cs>=0)
cout<<t;
cout<<"\n";
}
return 0;
}