#include <iostream>
using namespace std;
int main() {
for (int i = 2; i <= 10; i += 2) {
cout << i << endl;
}
return 0;
}
ICNpbmNsdWRlIDxpb3N0cmVhbT4KIHVzaW5nIG5hbWVzcGFjZSBzdGQ7CiAKIGludCBtYWluKCkgewogICAgIGZvciAoaW50IGkgPSAyOyBpIDw9IDEwOyBpICs9IDIpIHsKICAgICAgICAgY291dCA8PCBpIDw8IGVuZGw7CiAgICAgfQogICAgIHJldHVybiAwOwogICAgIAogfQogCiA=