#include <iostream>
using namespace std;


/*int main()
{
	char ch = 'A';
	int i = 0;
	int j = 0;
	for (i = 1; i <= 5; i++)
	{
		for (j = 1; j <= i; j++)
		{
			printf("%c ", ch);
		}
		ch++;
		printf("\n");
	}
	return 0;
}*/


/*int main()
{
	int num = 1;
	int i = 0;
	int j = 0;
	int j1 = 3;
	for (i = 1; i <= 3; i++)
	{
		//打印空格
		for (j1 = 4 - i; j1 >= 0; j1--)
			printf(" ");
		//打印数字
		for (j = 1; j <= i; j++)
		{
			printf("%d  ", num++);
		}
		printf("\n");

	}

	return 0;
}*/


/*int main()
{

	char s[100];
	int num;
	cin >> s;
	cin >> num;
	cout << s << "\n" << num << endl;
	return 0;
}*/


/*int main()
{

	cout << "请输入两个整数" << endl;
	int a, b;
	cin >> a >> b;
	cout << a + b << endl;//加法
	cout << a - b << endl;//减法
	cout << a * b << endl;//乘法
	cout << a / b << endl;//除法
	return 0;
}*/

/*int main()
{

	double side, high;
	cin >> side >> high;
	//立方体的体积
	cout << side * side * side << endl;
	//球的体积
	cout << (4 / 3) * 3.14 * side * side * side << endl;
	//圆锥的体积
	cout << 3.14 * side * side * side * (high/3) << endl;

	return 0;
}*/

int main() {
	int decimalNumber;

	// 输入一个十进制数
	std::cout << "Enter a decimal number: ";
	std::cin >> decimalNumber;

	// 将十进制数以十六进制形式输出
	std::cout << "The hexadecimal representation is: ";
	std::cout << std::hex << decimalNumber << std::endl;

	return 0;
}