//acmp.ru 0106 moentki.cpp 8%

#include <stdio.h>

int main(){
	freopen("INPUT.TXT", "r", stdin);
	freopen("OUTPUT.TXT", "w", stdout);

	int num;
	scanf("%i", &num);
	int arr[num], c0 = 0, c1 = 0;

	for(int i = 0; i < num; i++){
		scanf("\n%i", &arr[i]);
	}

	for(int i = 0; i < num; i++){
		if(arr[i] == 0){
			c0 = c0 + 1;
		}else if (arr[i] == 1){
			c1 = c1 + 1;
		}
	}
	
	if (c0 > c1){
		printf("%i", c1);
	}else if (c1 > c0){
		printf("%i", c0);
	}
}