#include <bits/stdc++.h> using namespace std; struct over{int conf,name;}oi[100100]; int a[2001000]; bool bj(over df,over dc){ if(df.conf!= dc.conf) return df.conf>dc.conf; else return df.name<dc.name; }//baim自制比较 int baim,maxx=-1; int main(){ cin>>baim; for(int i=1;i<=baim;i++){cin >> a[i]; maxx = max(maxx, a[i]); oi[a[i]].conf++;oi[a[i]].name = a[i];} sort(oi+1,oi+maxx+1,bj); cout<<oi[1].name; for(int i=2;i<=1400;i++)if(oi[i].conf) cout << "->" << oi[i].name; cout<<endl; }