struct Foo {
    field a;
}

struct Bar {
    Foo[1] foo;
}

def isEqual(field a, field b) -> bool {
    return a == b;
}

def main(field a) -> field {
    field b = (a + 5) * 6;
    assert(2 * b == a * 12 + 60);
    field c = 7 * (b + a);
    assert(isEqual(c, 7 * b + 7 * a));
    field k = [1f, 2] == [3f, 4] ? 1 : 3;
    assert([Bar { foo : [Foo { a: 42 }]}] == [Bar { foo : [Foo { a: 42 }]}]);
    return b + c;
}