// SIBLING:
fun foo(a: Int): Int {
    var b: Int = 1

    b = i(a, b)

    return b
}

fun i(a: Int, b: Int): Int {
    var b1 = b
    if (a > 0) {
        b1 = b1 + 1
    } else if (a < 0) {
        b1--
    } else {
        b1 = a
    }
    println(b1)
    return b1
}