fast_fibonacci(i: Integer): Integer do
    a: Integer
    b: Integer
    temp: Integer
    count: Integer
    count := i
    a := 0
    b := 1
    //b := a <=> b
    while count != 0 do
        temp := a
        a := a + b
        b := temp
        count := count - 1
    end
    return a
end

extern do_shit


bignumbers do
    a: Int128
    b: Int128
    c: Int64

    b := a + c as Int128
    c := b as Int64
end

main2 do
    value: Integer
    do_shit
end