#include<bits/stdc++.h>
using namespace std;
const int maxn=1e2+5;
int n;
int a[maxn];
int main()
{
	cin>>n;
	for(int i=1; i<=n+1; i++)
		cin>>a[i];
	if(a[1] != 0)
		cout<<a[1]<<"x^"<<n;
	for(int i=2; i<=n; i++)
	{
		
		if(a[i] > 0)
		{
			if(a[i] == 1)
				cout<<"+"<<"x^"<<n-i+1;
			else
				cout<<"+"<<a[i]<<"x^"<<n-i+1;
		}
		else if(a[i] < 0)
		{
			if(a[i] == -1)
				cout<<"-"<<"x^"<<n-i+1;
			else
				cout<<a[i]<<"x^"<<n-i+1;
		}
	}
	if(a[n+1] > 0)
		cout<<"+"<<a[n+1];
	else if(a[n+1] < 0)
		cout<<a[n+1];
	return 0;
}