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