#include<cstdio>
#include<cstdlib>
#define rep(i,a) for(int i=0;i<(a);++i)

int main()
{
	int N;
	scanf( "%d", &N );

	int ans = 0;
	rep( i, N )
	{
		int X;
		scanf( "%d", &X );

		ans += X&1?-1:1;
	}

	printf( "%d\n", abs(ans) );

	return 0;
}