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2980: 蓝桥杯真题2021

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:admin
Submit:40 Solved:26

Description

给定一个正整数N, 将  1 ~ N 之间的偶数递增 ,  奇数递减的顺序输出, 中间用  ,  隔开

Input

5

Output

2,4,5,3,1

Sample Input Copy

5

Sample Output Copy

2,4,5,3,1