Score : $100$ points

问题描述

AtCoder Grand Contest (AGC) 是一项具有世界权威的定期比赛，已经举办了54次。

正如你现在参加的第230次ABC被称作ABC230一样，第N次AGC最初是以零填充的3位数字N来命名的。（例如：第1次AGC是AGC001，第2次AGC是AGC002，以此类推）

然而，最近的第54次AGC被称作AGC055，其数字比54大一。由于社会状况导致AGC042被取消并缺失，自第42次及以后的比赛，其编号都比实际举办的次数大一。（详见样例输入和输出的说明部分）

现在的问题是：给定一个整数N，请按照格式AGCXXX打印第N次AGC的名字，其中XXX是一个零填充的3位数字。

以上为通义千问 qwen-max 翻译，仅供参考。

Problem Statement

AtCoder Grand Contest (AGC), a regularly held contest with a world authority, has been held $54$ times.

Just like the $230$-th ABC ― the one you are in now ― is called ABC230, the $N$-th AGC is initially named with a zero-padded $3$-digit number $N$. (The $1$-st AGC is AGC001, the $2$-nd AGC is AGC002, ...)

However, the latest $54$-th AGC is called AGC055, where the number is one greater than $54$. Because AGC042 is canceled and missing due to the social situation, the $42$-th and subsequent contests are assigned numbers that are one greater than the numbers of contests held. (See also the explanations at Sample Inputs and Outputs.)

Here is the problem: given an integer $N$, print the name of the $N$-th AGC in the format AGCXXX, where XXX is the zero-padded $3$-digit number.

Constraints

• $1 \leq N \leq 54$
• $N$ is an integer.

Input

Input is given from Standard Input in the following format:

$N$

Output

Print the name of the $N$-th AGC in the specified format.

Sample Input 1

42

Sample Output 1

AGC043

As explained in Problem Statement, the $42$-th and subsequent AGCs are assigned numbers that are one greater than the numbers of contests.
Thus, the $42$-th AGC is named AGC043.

Sample Input 2

19

Sample Output 2

AGC019

The $41$-th and preceding AGCs are assigned numbers that are equal to the numbers of contests.
Thus, the answer is AGC019.

Sample Input 3

1

Sample Output 3

AGC001

As mentioned in Problem Statement, the $1$-st AGC is named AGC001.
Be sure to pad the number with zeros into a $3$-digit number.

Sample Input 4

50

Sample Output 4

AGC051

update @ 2024/3/10 10:02:41