#include <iostream>
using namespace std;
struct WrappedVector {
static const int _N = 3;
// ^^^
double *_x;
};
int main() {
// your code goes here
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKIHN0cnVjdCBXcmFwcGVkVmVjdG9yIHsKICAgIHN0YXRpYyBjb25zdCBpbnQgX04gPSAzOwogICAgICAgICAgICAgICAgICAgICAvLyBeXl4KICAgIGRvdWJsZSAqX3g7CiB9OwogCmludCBtYWluKCkgewoJLy8geW91ciBjb2RlIGdvZXMgaGVyZQoJcmV0dXJuIDA7Cn0=