fn main() -> Result<(),u8> {
let @0⦊mut countdown = 10⦉@0;
@1,2⦊while
countdown
>
0⦉@1,2
{
if
@3,5⦊countdown
<
5⦉@3,5
{
return
if
@6,8⦊countdown
>
8⦉@6,8
{
@9,11⦊Ok(())⦉@9,11
}
else
{
@10⦊Err(1)⦉@10
}
;
}
@7⦊countdown
-=
1⦉@7
;
}
@4⦊Ok(())⦉@4
}@14⦊‸⦉@14