print+(map$"x($d-$_)."/".($d-$_?$":"_")x2x$_."\\
",0..($d=(<>-1)/3)),(map"|".$"x$_."\\".$"x2x($d-$_)."/".$"x$_."|
",0..--$d),map"|".$"x($e=$d-$_)."/".($e?$":"_")x2x$_."\\".$"x$e."|
",0..$d