#include <iostream>
#include <string>
using namespace std;
int main() {
printf("%.2f", -1.15E-15);
// your code goes here
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3RyaW5nPgoKdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJcHJpbnRmKCIlLjJmIiwgLTEuMTVFLTE1KTsKCQoJLy8geW91ciBjb2RlIGdvZXMgaGVyZQoJcmV0dXJuIDA7Cn0=