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How many days?

Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 12514 Accepted Submission(s): 6950

Problem Description

8600的手机每天消费1元，每消费K元就可以获赠1元，一开始8600有M元，问最多可以用多少天？

Input

输入包括多个测试实例.每个测试实例包括2个整数M, k，（2 <= k <= M <= 1000).M = 0, k = 0代表输入结束.

Output

对于每个测试实例输出一个整数，表示M元可以用的天数。

Sample Input

2 2
4 3
0 0

Sample Output

3
5

Author

8600

Source

HDU 2006-12 Programming Contest

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