Problem A: 输出自然数序列1,2,3,4,5...

Problem A: 输出自然数序列1,2,3,4,5...

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 2506  Solved: 1424
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Description

输入正整数N(N≤100),输出前N个自然数。每个数占4个位置 

Sample Input Copy

5

Sample Output Copy

   1   2   3   4   5