#include <iostream>

int main() {
    char* buf = new char[6]; // 5文字 + '\0'
    buf[0] = 'H';buf[1] = 'e';buf[2] = 'l';buf[3] = 'l';buf[4] = 'o';buf[5] = '\0';
    std::cout << buf << std::endl;
    delete buf;
    return 0;
}