#lang precalc-demo
fun f(x, y, z) = x + x + x * (y + y) + y * z - z - z

fun g42(z) = f(z, z, z) # line comment
g42(-10) # = 300

fun h() = g42(10)
h() # = 300

fun k(x) = x / 10 / 10 / (x / x)
k(h()) # = 3
k(-10 * (15 + 3 * 5)) # = -3

/*
multiline comment
0 / 0 / 0
*/