main() {
    let x: u64;
    let y: u64;
    x = 0;
    y = 0;
    loop {
        if (copy(x) < 10) {
            x = move(x) + 1;
            if (copy(x) % 2 == 0) {
                continue;
            }
            y = move(y) + copy(x);
        }
        else {
            break;
        }
    }
    assert(move(y) == 25, 42);
    return;
}