Description

• It is similar to 231001_12/7_practice12-2.

• Read the comments in the p-14-2.c file and complete those functions.

• The main function contain two stacks s1 and s2.

• There is only one input n, which means the maximum size of the stack s1.

Input

• Input: An integer n

Output

• Output: See the sample I/O

• Output format: 

1. There is a space after each number.

2. Change a new line at the end of each line.

 

Sample Input  Download

Sample Output  Download

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