func main(a) {
    if (a < 10)
        println("a is less than 10")

    if (a > -5)
        println("a is more than -5")
    else
        println("a is less than or equal to -5")

    if (a == 5)
        println("a is equal to 5")

    if (a != 0 and a != 4)
        println("a is neither 0 nor 4")

    if (a == 0 or a == 4)
        println("a is 0 or 4")

    if (a != 0) {
        println("a is not equal to 0")
        if (a == 6)
            println("a is however 6")
        else if (a == 7)
            println("a is however 7")
        else if (a == 10)
            println("a is however 10")
        else
            println("a is neither 0, 6, 7 or 10, but ", a)

        if (a == 10) {
           println("10 is my favorite")
        } else {
           println("I'm not happy about it either")
        }

        print("FIN?  ")
    }

    println("FIN.")
}

//TESTCASE: 4
//a is less than 10
//a is more than -5
//a is 0 or 4
//a is not equal to 0
//a is neither 0, 6, 7 or 10, but 4
//I'm not happy about it either
//FIN?  FIN.

//TESTCASE: 0
//a is less than 10
//a is more than -5
//a is 0 or 4
//FIN.

//TESTCASE: 10
//a is more than -5
//a is neither 0 nor 4
//a is not equal to 0
//a is however 10
//10 is my favorite
//FIN?  FIN.

//TESTCASE: -20
//a is less than 10
//a is less than or equal to -5
//a is neither 0 nor 4
//a is not equal to 0
//a is neither 0, 6, 7 or 10, but -20
//I'm not happy about it either
//FIN?  FIN.