Untitled

import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        Map<Integer, Integer> map = new TreeMap<>();
        
        for (int i = 0; i < n; i++) {
            int x = scanner.nextInt();
            map.put(x, map.getOrDefault(x, 0) + 1);
        }
        
        for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
            System.out.println(entry.getKey() + " " + entry.getValue());
        }
        
        scanner.close();
    }
}