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#include <bits/stdc++.h>
#define ll long long 
using namespace std;
int main()
{
    int n;
    scanf("%d",&n);
    bool zr;
    for(int i = n;i >= 0;i --)
    {
        int m;
        scanf("%d",&m);
        if(m == 0)
        {
            if(i == n)zr = 1;
            else if(i != 0)continue;
            else
            {
                if(zr == 1)printf("0");
                else continue;
            }
        }
        else if(m == 1)
        {
            if(i == 0)
            {
                if(!zr)printf("+1");
                else printf("1");
            }
            else if(i == n)printf("x^%d",n);
            else if(i == 1)
            {
                if(!zr)printf("+x");
                else printf("x");
            }
            else 
            {
                if(!zr)printf("+x^%d",i);
                else printf("x^%d",i);
            }
            zr = 0;
        }
        else if(m == -1)
        {
            if(i == 0)printf("-1");
            else if(i == 1)printf("-x");
            else printf("-x^%d",i);
            zr = 0;
        }
        else if(m > 0)
        {
            if(i == 0)
            {
                if(!zr)printf("+%d",m);
                else printf("%d",m);
            }
            else if(i == n)printf("%dx^%d",m,n);
            else if(i == 1)printf("%dx",m);
            else 
            {
                if(!zr)printf("+%dx^%d",m,i);
                else printf("%dx^%d",m,i);
                zr = 0;
            }
        }
        else
        {
            if(i == 0)printf("%d",m);
            else if(i == 1)printf("%dx",m);
            else printf("%dx^%d",m,i);
            zr = 0;
        }
    }
    return 0;
}