Problem i: 输出数列 1, 12, 123, 1234, 12345...

Problem i: 输出数列 1, 12, 123, 1234, 12345...

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 1168  Solved: 978
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Description

输入正整数N（N＜10），输出数列中的前N项。每个数占一行 

Sample Input Copy 

5

Sample Output Copy 

1
12
123
1234
12345
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