app [main] { pf: platform "https://github.com/roc-lang/basic-cli/releases/download/0.16.0/O00IPk-Krg_diNS2dVWlI0ZQP794Vctxzv0ha96mK0E.tar.br" }

import pf.Stdout

addAndStringify = \num1, num2 -> 
    sum = num1 + num2
    
    if sum == 0 then
        ""
    else
        Num.toStr sum

calcFac = \number ->
if number == 0 then
    1
else 
    (number * (calcFac (number - 1)))

main =
    Stdout.line! "I'm a Roc application!"
    Stdout.line! (addAndStringify 2 3)
    Stdout.line! (Num.toStr (calcFac 10))