求小数的某一位(小学奥数)
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Background
Description
分数a/b化为小数后,小数点后第n位的数字是多少?
Format
Input
三个正整数a,b,n,相邻两个数之间用单个空格隔开。0 < a < b < 100,1 <= n <= 10000。
Output
一个数字。
Samples
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