#include <bits/stdc++.h>
using namespace std;
#define GG ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int main () { GG;
int t; cin>>t;
while(t--) {
int n;
cin>>n; int a[n]={0},b[n]={0};
for(int i=0;i<n-1;i++) cin>>a[i];
b[0]=501;
for(int i=1;i<n;i++)
{ b[i]=b[i-1]+a[i-1];
}
for(int i=0;i<n;i++)
cout<<b[i]<<" ";
cout<<"\n";
}return 0;}
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