// SIBLING:
fun foo(a: Int): Int {
    val b: Int = 1
    for (n in 1..a) {
        if (b(a, b)) break
        
    }
    return 1
}

fun b(a: Int, b: Int): Boolean {
    if (a + b > 0) return true
    else {
        println(a - b)
        if (a - b > 0) return true else println(a + b)
    }
    return false
}