10-19 Exercise 3: Prints the number with its digits reversed

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Write a program that input four-digit number, then prints the number with its digits reversed .

寫一個輸入4位數字，反轉輸出這個數字的值

Example input: 

5455

Example output:

5545

Example input: 

5400

Example output:

45
[Exercise] Coding (C) - asked in Chapter 4: Expressions by (12.1k points)
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#include <stdio.h>
#include <stdlib.h>

int main()
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Hidden content!
#include <stdio.h>
int main()
{
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Hidden content!
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Hidden content!
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Hidden content!
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Hidden content!
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Hidden content!
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Hidden content!
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