define g(a) {
    auto b

    b = 3

    "Inside g: a = "; a
    "Inside g: b = "; b
    "Inside g: c = "; c
    "Inside g: d = "; d

    a = 3; b = 3; c = 3; d = 3
}

define f(a) {
    auto b, c

    b = 2; c = 2
    "Inside f (before call): a = "; a
    "Inside f (before call): b = "; b
    "Inside f (before call): c = "; c
    "Inside f (before call): d = "; d
    x = g(2)    /* Assignment prevents output of the return value */
    "Inside f (after call): a = "; a
    "Inside f (after call): b = "; b
    "Inside f (after call): c = "; c
    "Inside f (after call): d = "; d

    a = 2; b = 2; c = 2; d = 2
}

a = 1; b = 1; c = 1; d = 1
"Global scope (before call): a = "; a
"Global scope (before call): b = "; b
"Global scope (before call): c = "; c
"Global scope (before call): d = "; d
x = f(1)
"Global scope (before call): a = "; a
"Global scope (before call): b = "; b
"Global scope (before call): c = "; c
"Global scope (before call): d = "; d