// 2022 IUSB Programming Competition
// Round 1 Problem 4
// Vote Count
// Solution by Liguo Yu

#include <iostream>
using namespace std;

int main()
{
	int n, v;
	cin >> n;
	cin >> v;

	int * votes = new int[n];

	for (int i = 0; i < n; i++)
	{
		votes[i] = 0;
	}

	for (int i = 0; i < v; i++)
	{
		int m;
		cin >> m;
		votes[m - 1] = votes[m - 1] + 1;
	}

	for (int i = 0; i < n; i++)
	{
		cout << votes[i] << "\t";
	}
	cout << endl;

	int temp = votes[0];

	for (int i = 1; i < n; i++)
	{
		if (votes[i] > temp) temp = votes[i];
	}

	for (int i = 0; i < n; i++)
	{
		if (votes[i] == temp)
			cout << i + 1 << "\t";
	}
	cout << endl;

	return 1;
}