Write a program that outputs the result of the signum function, given an argument æ. The signum of æ, or sgn(x), is defined as follows: -1 if æ < 0 if æ = 0 if æ > 0 sgn(x) : Your program must take a real number z for input and it must print the value of sgm(x). Input Input is a real number a. Output Output the valud of sgn(x) as an integer.

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