Codeforces_712_A

http://codeforces.com/contest/712/problem/A

水题，写出来就看到规律了。

#include<iostream>
#include<cstring>
using namespace std;

long long a[];

int main()
{
    long long last,now,n,i;
    cin >> n;
    for(i = ;i <= n;i++)   cin >> a[i];
    for(i = ;i < n;i++)    cout << a[i]+a[i+] << ' ';
    cout << a[i] << endl;
    return ;
}