#include <bits/stdc++.h>
using namespace std;
int main() {
long long int x = 6000000000;
long long int y = x/(-2);
cout << y << endl;
return 0;
}
I2luY2x1ZGUgPGJpdHMvc3RkYysrLmg+CnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpIHsKCWxvbmcgbG9uZyBpbnQgeCA9IDYwMDAwMDAwMDA7Cglsb25nIGxvbmcgaW50IHkgPSB4LygtMik7Cgljb3V0IDw8IHkgPDwgZW5kbDsKCXJldHVybiAwOwp9