extern putchar
extern iadd

fn hello() {
    local h = 72
    putchar(h)
    local e = h - 3
    putchar(e)
    local l = h + 4
    putchar(l)
    putchar(l)
    local o = 100 - 21
    putchar(o)
}

fn main() {
    hello()
    local newline = iadd(3*3, 1)
    putchar(newline)
}