#include <iostream>
using std::cout;
using std::cin;
using std::endl;

int main()
{
	int a[] { 1, 1, 1, 2, 2, 3, 1, 3, 4, 5, 3 };
	int counters[6];
	int min;

	for(int i = 0; i < 6; i++)
	{
		counters[i] = 0;
	}

	for(int i = 0; i < sizeof(a) / sizeof(int); i++)
	{
		counters[a[i]]++;
	}

	min = counters[1];

	for(int i = 1; i < 6; i++)
	{
		if(min > counters[i])
		{
			min = i;
		}
	}

	cout << min << endl;

	cin.get();
	return 0;
}