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Muallif: Yo'ldoshev Bekzod

Challenge Fun #10: Integer Square Root

For each given a number N, the integer S is called integer square root of N if S x S <= N and (S+1) x (S+1) > N.

In other words, S = Math.floor(Math.sqrt(N))

Your task is to calculate the integer square root of a given Number.

Note: Input is given in string format. That is, the Number may be very very large ;-)

Kiruvchi ma'lumotlar:

number in decimal form. 0 < Number < 10^100

Chiquvchi ma'lumotlar:

integer squareroot of Number.

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