#include <stdio.h>
#include <string.h>
#include <math.h>
int main(){
	int a[500]={0},i,j,k,n; 
	scanf("%d",&n);
	for(i=0;i<=n;i++)
	scanf("%d",&a[i]);
	for(i=0;i<=n-2;i++){
		if(a[i]==0)
		continue;
		if(i==0&&a[i]>0){
			if(a[0]==1)
			printf("x^%d",n-i);
			else {
			printf("%dx^%d",a[0],n-i);		
		}	    
	}
		else if(i==0&&a[i]<0){
			if(a[0]==-1)
			printf("-x^%d",n-i);
			else {
			printf("%dx^%d",a[0],n-i);		
			}	    
	}
	else {
		if(a[i]>0){
			if(a[i]==1)
			printf("+x^%d",n-i);
			else 
			printf("+%dx^%d",a[i],n-i);	
	}
		else if(a[i]<0){
			if(a[i]==-1)
			printf("-x^%d",n-i);
			else 
			printf("%dx^%d",a[i],n-i);			
		}								
		}		
    }
    if(a[n-1]!=0){
    	if(a[n-1]>0){
    		if(a[n-1]==1){
    			printf("+x");
			}
    		else {
    			printf("+%dx",a[n-1]);
			}
		}
		if(a[n-1]<0){
    		if(a[n-1]==-1){
    			printf("-x");
			}
    		else {
    			printf("%dx",a[n-1]);
			}
		}	
}
    if(a[n]!=0){
    	if(a[n]>0)
    	printf("+%d",a[n]);
    	else {
    		printf("%d",a[n]);
		} 	
	}
}
	
	
	
	
	
	
	

/**************************************************************
	Problem: 2284
	User: admin
	Language: C
	Result: Accepted
	Time:62 ms
	Memory:1144 kb
****************************************************************/