#include <iostream>
using namespace std;

int main() {
    int n;
    int cnt = 1;
    cin >> n;
    int arr[n];
    for (int i = 0;i < n;i++) {
        cin >> arr[i];
    }
    for (int i = 0;i < n-1;i++) {
        if ((arr[i] + arr[i+1]) % 2 != 0) {
            cnt++;
        }
    }
    
    cout << cnt;
    return 0;
}