Find the fraction closest to sqrt(N), the denominator of the fraction is no more than M.
输入解释
The input consists of multiple test cases.For each case the input contains two integers N and M, 1<=N<=1000000, 1<=M<=1000.
输出解释
For each case output one line, contaning the fraction that in the form "A/B" where A and B are positive integers with no common factors greater than one.