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时间限制 2 ms 内存限制 32 MB

You are given a positive integer n, please count how many positive integers k satisfy $k^k \leq n$.

There are no more than 50 test cases.

Each case only contains a positivse integer n in a line.

$1 \leq n \leq 10^{18}$

For each test case, output an integer indicates the number of positive integers k satisfy $k^k \leq n$ in a line.

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