#include<bits/stdc++.h>
using namespace std;
#define cls system("cls")
void nhapmang(int *a, int &n)
{
for (int i = 0; i<n; i++)
{
cout << "a[" << i << "]=";
cin >> *(a + i);
}
}
int demduongchan(int s)
{
int total=0;
if(s>0&&s%2==0){
total+=1;
}
return total;
}
int main()
{
int n,sodc=0;
cin>>n;
if(n>100){
cls;
return main();
}
int arr[n];
nhapmang(arr,n);
for(int i=0;i<n;i++){
sodc+=demduongchan(arr[i]);
}
cout<<"Trong mang co "<<sodc<<" so duong chan";
//samon247
return 0;
}