102710: [AtCoder]ABC271 A - 484558

Problem Statement

In the hexadecimal system, where the digits ABCDEF corresponding to $10,11,12,13,14$, and $15$ are used in addition to 0123456789, every integer between $0$ and $255$ is represented as a $1$- or $2$-digit numeral.
For example, $0$ and $12$ are represented as $1$-digit hexadecimal numerals 0 and C; $99$ and $255$ are represented as $2$-digit hexadecimals 63 and FF.

Given an integer $N$ between $0$ and $255$, convert it to an exactly two-digit hexadecimal numeral, prepending leading 0s if necessary.

Notes

The judge is case-sensitive. Specifically, you cannot use abcdef as hexadecimal digits instead of ABCDEF.

Constraints

• $0 \leq N \leq 255$
• $N$ is an integer.

Input

The input is given from Standard Input in the following format:

$N$

Output

Print the answer.

Sample Input 1

99

Sample Output 1

63

$99$ is represented as 63 in hexadecimal.

Sample Input 2

12

Sample Output 2

0C

$12$ is represented as C in hexadecimal.
Since we ask you to convert it to a two-digit hexadecimal numeral, the answer is 0C, where 0 is prepended to C.

Sample Input 3

0

Sample Output 3

00

Sample Input 4

255

Sample Output 4

FF

问题描述

在十六进制系统中，除了使用0123456789外，还使用了代表$10,11,12,13,14$和$15$的字母ABCDEF，将$0$到$255$之间的每个整数表示为一位或两位数。 例如，$0$和$12$分别表示为一位十六进制数0和C；$99$和$255$分别表示为两位十六进制数63和FF。

给定一个在$0$到$255$之间的整数$N$，将其转换为恰好两位的十六进制数，如有需要，请在前面补零。

注意

法官对大小写敏感。具体来说，您不能使用abcdef作为十六进制数而不是ABCDEF。

约束

• $0 \leq N \leq 255$
• $N$是一个整数。

输入

输入通过标准输入给出以下格式：

$N$

输出

打印答案。

样例输入1

99

样例输出1

63

$99$在十六进制中表示为63。

样例输入2

12

样例输出2

0C

$12$在十六进制中表示为C。
由于我们要求将其转换为两位十六进制数，答案为0C，其中在C前面添加了0。

样例输入3

0

样例输出3

00

样例输入4

255

样例输出4

FF