3361: Be Good at Gaussing

内存限制:128 MB 时间限制:1.000 S
评测方式:文本比较 命题人:
提交:17 解决:13

题目描述

Give you many positive integer N (N<=23),for each N,just output  N*(N+1)/2 integers in a single line,separated by space. (Don't ask me why.)For each N,the output  line contains integers from 1 to N,and each just once.Again,do not ask me why,thank you.I'm so busy.But I can tell you a secret,the output  has relationship with number triangle.As:(N=3)

                   1

                   2   6

                   3   4   5

See the sample for more information.

输入

Many lines,each line contains a positive integer N (N<=23).

输出

For each N,output N*(N+1)/2 integers in a single line,separated by a blank space.

样例输入 复制

3
4
2
6

样例输出 复制

1 2 6 3 4 5
1 2 9 3 10 8 4 5 6 7
1 2 3
1 2 15 3 16 14 4 17 21 13 5 18 19 20 12 6 7 8 9 10 11

来源/分类