.

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,a[105];
    cin>>n;
    for (int i=1;i<=n+1;i++) cin>>a[i];
    if (a[1]!=0&&a[1]!=1&&a[1]!=-1) cout<<a[1]<<"x^"<<n;
    else if (a[1]==1) cout<<"x^"<<n;
    else if (a[1]==-1) cout<<"-x^"<<n;
    for (int i=2;i<=n-1;i++){
        if (a[i]>0&&a[i]!=1) cout<<'+'<<a[i]<<"x^"<<n-i+1;
        else if (a[i]<0&&a[i]!=-1)cout<<a[i]<<"x^"<<n-i+1;
        else if (a[i]==1) cout<<'+'<<"x^"<<n-i+1;
        else if (a[i]==-1) cout<<'-'<<"x^"<<n-i+1;
    }
    if (a[n]>0&&a[n]!=1) cout<<'+'<<a[n]<<"x";
    else if (a[n]<0&&a[n]!=-1) cout<<a[n]<<"x";
    else if (a[n]==1) cout<<"+x";
    else if (a[n]==-1) cout<<"-x";
    if (a[n+1]>0) cout<<'+'<<a[n+1];
    else if (a[n+1]<0) cout<<a[n+1];
    return 0;
}