#include <iostream>
using namespace std;
int main(void){
    int n;
    cin>>n;
    int a[n];
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    for(int i=0;i<n/2+1;i++){
        if(a[0]+a[n-1]!=a[i]+a[n-i-1]){
            cout<<"No"<<endl;
            return 0;
        }
    }
    cout<<"Yes"<<endl;
    return 0;
}