#include <iostream>
using namespace std;
int main() {
char *ptr = "hello world";
cout << ptr << endl;
cout << ptr[0] << endl;
cout << &ptr;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CgljaGFyICpwdHIgPSAiaGVsbG8gd29ybGQiOwpjb3V0IDw8IHB0ciA8PCBlbmRsOwpjb3V0IDw8IHB0clswXSA8PCBlbmRsOwpjb3V0IDw8ICZwdHI7CglyZXR1cm4gMDsKfQ==