#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    int i,j;
    int a[1000000];
    for(i=0;i<=n;i++)
    {
        scanf("%d",&a[i]);
    }
    if(a[0]>0&&a[0]!=1)
    printf("%dx^%d",a[0],n);
    else if(a[0]<0&&a[0]!=-1)
    printf("-%dx^%d",-a[0],n);
    else if(a[0]==1)
    printf("x^%d",n);
    else if(a[0]==-1)
    printf("-x^%d",n);
    for(j=1;j<n;j++)
    {
        if(n-j!=1)
        {
        if(a[j]>0&&a[j]!=1)
        printf("+%dx^%d",a[j],n-j);
        else if(a[j]<0&&a[j]!=-1)
        printf("-%dx^%d",-a[j],n-j);
        else if(a[j]==1)
        printf("+x^%d",n-j);
        else if(a[j]==-1)
        printf("-x^%d",n-j);
        else
        continue;
        }
        else
        {
        if(a[j]>0&&a[j]!=1)
        printf("+%dx",a[j]);
        else if(a[j]<0&&a[j]!=-1)
        printf("-%dx",-a[j]);
        else if(a[j]==1)
        printf("+x");
        else if(a[j]==-1)
        printf("-x");
        else
        continue;
 
        }
    }
    if(a[n]>0)
    printf("+%d",a[n]);
    else if(a[n]<0)
    printf("-%d",-a[n]);
    return 0;
}