// This program is a simple test of while loops, counting down from 19 to 0
// and skipping 10 (if continue is implemented)

func while_test ()
begin
    var a, b
    a := 20
    
    b := test_while()
    
    print a


    if a > 0 then print "foobar"
    while a > 0 do
    begin
        if a = 10 then
        begin
            a -= 1
            print "Skip..."
            continue
        end
        else
            a -= 1
        print a
    end
    return 0
end

func test_while()
begin
    var n, m

    n := 4
    m := 21

    while n > 0 do
    begin
        n -= 1
        if n = 2 then
            continue

        while m > 0 do
        begin
            m -= 1

            if m = 10 then
                continue

            print n, m
        end


    end

    return 0
end