#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <cstring>

typedef long long ll;
using namespace std;

#define mod 1000000009
#define INF 1000000000
#define LLINF 2000000000000000000LL
#define PI 3.1415926536

#define SIZE 101

int main(){
    int n,cc[2]={0},x;
    
    scanf("%d",&n);
    
    for(int i=0;i<n;i++){
        scanf("%d",&x);
        x+=INF;
        
        cc[x%2]++;
    }
    
    printf("%d\n",abs(cc[0]-cc[1]));
    
    return 0;
}