fmt := import("fmt")

b := bytes("hello")
fmt.println(len(b))
fmt.println(type_name(b))

fmt.println(b[0])
fmt.println(b[4])

buf := bytes(4)
fmt.println(len(buf))
fmt.println(buf[0])

fmt.println(string(b[0:3]))
fmt.println(string(b[3:]))

for i, v in bytes("ABC") {
    fmt.printf("  [%d] = %d\n", i, v)
}

fmt.println(string(b))

modified := string(b[0:1]) + "ELL" + string(b[4:])
fmt.println(string(bytes(modified)))

fmt.println(bytes("abc") == bytes("abc"))
fmt.println(bytes("abc") == bytes("xyz"))