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	data, err := ioutil.ReadFile("test.txt")
	if err != nil {
		log.Fatal(err)
	}

	// Hash the file and output results
	fmt.Printf("Md5: %x\n\n", md5.Sum(data))
	fmt.Printf("Sha1: %x\n\n", sha1.Sum(data))
	fmt.Printf("Sha256: %x\n\n", sha256.Sum256(data))
	fmt.Printf("Sha512: %x\n\n", sha512.Sum512(data))