#include <bits/stdc++.h>

using namespace std;
const int N = 1e5 + 10;
int s[N];
int main() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        s[i] = s[i - 1] + x;
    }
    cout << n << endl;
    for (int i = 1; i <= n; i++)
        cout << s[i] << endl;

    return 0;
}