#include<bits/stdc++.h>
using namespace std;
int q,w,r,t,y,u,i,o,p,s,f,g,h,j,k,l,z,x,v,n,m,a[1000],b[1000],c[1000],d[1000],e[1000];
int main()
{
	cin>>n;
	for(i=1;i<=n+1;i++)
		cin>>a[i];
	for(i=1;i<=n-1;i++)
    {
    	if(a[i]>0&&i!=1) cout<<"+";
    	if(a[i]==-1) cout<<"-";
    	if(a[i]!=1&&a[i]!=0&&a[i]!=-1)
    	cout<<a[i]<<"x^"<<n+1-i;
    	if(a[i]==1||a[i]==-1)
    	cout<<"x^"<<n+1-i;
	}
	if(a[n]>0) cout<<"+";
	if(a[n]==-1) cout<<"-";
	if(a[n]!=1&&a[n]!=0&&a[n]!=-1)
    cout<<a[n]<<"x";
    if(a[n]==1||a[n]==-1)
    cout<<"x";
	if(a[n+1]>0) cout<<"+";
	if(a[n+1]!=0)
	cout<<a[n+1];
	return 0;
}