#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ull unsigned long long
#define vi vector<int>
#define vc vector<char>
#define vs vector<string>
#define vb vector<bool>
#define vpii vector<pair<int, int>>
#define vpic vector<pair<int, char>>
#define vpis vector<pair<int, string>>
#define vvi vector<vector<int>>
#define pb push_back
#define pii pair<int, int>
#define rep(i, s, e) for (int i = (s); i < (e); i++)
#define all(x) x.begin(), x.end()
#define fastio ios::sync_with_stdio(false); cin.tie(0);
#define MOD 1000000007

signed main() {
    fastio
    int n, k;
        cin >> n;
        vi a(n);
        rep(i, 0, n) cin >> a[i];
        bool chk = true;
        int i=1, j=n-2;
        int sum = a.front() + a.back();
        while(i <= j) {
            if(a[i++] + a[j--] != sum) {
                chk = false;
                break;
            }
        }
        if(chk) cout << "Yes" << endl;
        else cout << "No" << endl;
}