fn main() -> Result<(),()> { let @0,1⦊mut countdown = 10⦉@0,1 ; for @6,8⦊_⦉@6,8 in @2,3,4⦊0..10⦉@2,3,4 { @9⦊countdown -= 1 ; if countdown < 5⦉@9 { @10,12,13,14⦊call(/*return_error=*/ true)⦉@10,12,13,14@16,18,19,20⦊?⦉@16,18,19,20; @15,21,22⦊call(/*return_error=*/ false)⦉@15,21,22@24,26,27,28⦊?⦉@24,26,27,28; } else { @11,29,30⦊call(/*return_error=*/ false)⦉@11,29,30@32,34,35,36⦊?⦉@32,34,35,36; }@23⦊⦉@23@31⦊⦉@31 }@37⦊⦉@37 @5⦊Ok(())⦉@5 }@38⦊⦉@38@39⦊⦉@39