Why does my code's output go wrong at the end?

Today I have tried setting up vscode for c++ compiling and after compiling a simple cpp program I saw that the output is wrong and i have no idea why.

Here is my code: https://pastebin.com/iLSVHW7T

#include <iostream>

using namespace std;

int main(){
    int x[3],i,n;
    cin>>n;
    for(i=0;i<=n;i++)
    cin>>x[i];
    for(i=0;i<=n;i++)
    cout<<x[i]<<"";
}

Thanks for your time.