#include <iostream>
#include <complex>
int main() {
std::complex<double> val = 2 + 3i;
std::cout << val << std::endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8Y29tcGxleD4KCmludCBtYWluKCkgewogICAgc3RkOjpjb21wbGV4PGRvdWJsZT4gdmFsID0gMiArIDNpOwogICAgc3RkOjpjb3V0IDw8IHZhbCA8PCBzdGQ6OmVuZGw7CiAgICByZXR1cm4gMDsKfQo=