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