#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <iomanip>
using namespace std;
int A[100000];
int B[100000];
int main()
{
	int n,i,h = 0;
	cin >> n;
	for(i = 1;i <= n + 1;i++)
	{
		cin >> A[i];
	}
	if(A[1] != 0)
	{
		if(A[1] > 0)
		{
			if(A[1] == 1)
			{
				cout << "x^" << n;
				h = 1;
			}
			else
			{
				cout << A[1] << "x^" << n;
				h = 1;
			}
		}
		else 
		{
			if(A[1] == -1)
			{
				cout << "-" << "x^" << n;
				h = 1;
			}
			else
			{
				cout << A[1] << "x^" << n;
				h = 1;
			}
		}
	}
	
	for(i = 2;i <= n;i++)
	{
		if(A[i] == 0)continue;
		else
		{
			if(n - i + 1 == 0)
			{
				if(A[i] > 0)
				{
					if(h == 0)
					{
						cout << A[i];
						h = 1;
					}
					else
					{
						cout << "+" << A[i];
					}
				}
				else cout << A[i],h = 1;
			}
			else
			{
				if(A[i] > 0)
				{
					if(n - i + 1 == 1)
					{
						if(h == 0)
						{
							if(A[i] == 1)
							{
								cout << "x";
								h = 1;
							}
							else
							{
								cout << A[i] << "x";
								h = 1;
							}
						}
						else
						{
							if(A[i] == 1)
							{
								cout << "+" << "x";
								h = 1;
							}
							else
							{
								cout << "+" << A[i] << "x";
								h = 1;
							}
						}
					
					}
					else
					{
						if(h == 0)
						{
							if(A[i] == 1)
							{
								cout << "x^" << n - i + 1;
								h = 1;
							}
							else
							{
								cout << A[i] << "x^" << n - i + 1;
								h = 1;
							}
						}
						else
						{
							if(A[i] == 1)
							{
								cout << "+" << "x^" << n - i + 1;
							}
							else
							{
								cout << "+" << A[i] << "x^" << n - i + 1;
							}
						}
					
					}
				}
				else
				{
					if(n - i + 1 == 1)
					{
						if(A[i] == -1)
						{
							cout << "-" << "x";
						}
						else
						{
							cout << A[i] << "x";
						}	
					}
					else
					{
						if(A[i] == -1)
						{
							cout << "-" << "x^" << n - i + 1;
						}
						else
						{
							cout << A[i] << "x^" << n - i + 1;
						}	
					}
						
				}
			}
			
		}
	}
	if(h == 0)
	{
		cout << A[n +1];
	}
	else
	{
		if(A[n + 1] < 0) cout << A[n + 1];
		else cout << "+" << A[n + 1];
	}
	return 0;
}