SALUT
1.
# include <bits/stdc++.h>
using namespace std;
int main ()
{
int n, s = 0;
cin >> n;
while (n) {
cin >> n;
if (n % 2 == 0) {
s = s + n;
}
}
cout << s;
return 0;
}
2.
# include <bits/stdc++.h>
using namespace std;
int main ()
{
int n, p = 1;
cin >> n;
while (n) {
cin >> n;
if (n) {
p = p * n;
}
}
cout << p;
return 0;
}