#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
// your code goes here
int n ; cin>>n;
vector<int>arr(n);
for(int i = 0 ; i<n;i++){
cin>>arr[i];
}
unordered_map<int,int>mp;
for(int i = 0 ; i<n;i++){
mp[arr[i]]++;
}
for(auto &p : mp){
cout<<"element "<<p.first<<" "<<"frequency "<<p.second<<"\n";
}
return 0;
}
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