noname33 (rain)

#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll n, nui[100005], dam[100005];
int main(){
    cin>>n;
    for(ll i=1; i<=n; i=i+1) cin>>dam[i];
    for(ll i=1; i<=n; i=i+2) nui[1]=nui[1]+dam[i];
    for(ll i=2; i<=n; i=i+2) nui[1]=nui[1]-dam[i];
    for(ll i=2; i<=n; i=i+1) nui[i]=2*dam[i-1]-nui[i-1];
    for(ll i=1; i<=n; i=i+1) cout<<nui[i]<<' ';
}