#include <bits/stdc++.h> using namespace std; int arr[100005]; int main(){ int n; cin>>n; for(int i = 0;i<=n;i++){ cin>>arr[i]; } int m = n; bool t=true; for(int i = 0;i<=n;i++){ if(arr[i]==0){ m--; continue; } else if(arr[i]>0){ if(n!=m){ cout<<"+"; } if(m==0){ cout<<arr[i]; m--; } else if(m==1){ cout<<arr[i]<<"x"; m--; } else{ if(arr[i]==1) cout<<"x^"<<m--; else cout<<arr[i]<<"x^"<<m--; } } else{ if(m==0){ cout<<arr[i]; m--; } else if(m==1){ cout<<arr[i]<<"x"; m--; } else{ if(arr[i]==-1) cout<<"-x^"<<m--; else cout<<arr[i]<<"x^"<<m--; } } } cout<<endl; return 0; }