#include <iostream>
using namespace std;
struct wat{
virtual void lol(){}
int i;
};
int main() {
// your code goes here
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKCnN0cnVjdCB3YXR7CnZpcnR1YWwgdm9pZCBsb2woKXt9CmludCBpOwp9OwoKaW50IG1haW4oKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCglyZXR1cm4gMDsKfQ==