var a = 0

while a < 100
    a = a + 1
end

assert_eq (100, a)

var b = 0
var c = 0
var d = 0

while b < 6
    c = 0
    while c < 7
        d = d + 1
        c = c + 1
    end

    b = b + 1
end

assert_eq (d, 42)

var e = 0
var f = 0

while e < 128
    e = e + 1
    if e % 2 == 0
      continue
    end

    f = f + 1
end

assert_eq (64, f)

var g = 0
var h = 0
var i = 0

while g < 100
    h = 0

    if g >= 7
        break
    end

    while h < 100
        if h >= 6
            break
        end

        h = h + 1
        if h % 2 == 0
            continue
        end
        i = i + 1
    end

    g = g + 1
end

assert_eq (21, i)