#include <iostream>
using namespace std;

int main() {
	char array[] = { '1', '2', '3', '\0' };
	char array_2[] = "123";
	const char* ptr = array;
	
	std::cout << array << std::endl;
	std::cout << array_2 << std::endl;
	std::cout << ptr << std::endl;

	return 0;
}