#include < stdio.h >
#include <stdbool.h>
#include <math.h>
int main()
{
	int root;
	float initialValue, squareRoot;
	const eps = 0.01;
	squareRoot = 1;
	printf("Enter a positive integer from 1 to 2147483647\n");
	scanf_s("%d", &root);
	do
	{
		initialValue = squareRoot;
		squareRoot = (initialValue + root / initialValue) / 2;
	}  while ((fabs(squareRoot - initialValue)  > eps));
	printf("final = %f", squareRoot);
   return 0;
}