#!perl -l
use strict;
use warnings;
no warnings 'exiting';

my ($x);

sub do_onething {
    if ($x) {
        print $x--;
        redo ATTEMPT
    } else {
        $x=10;
        print "Done onething.";
    }
};
sub do_another {
    if ($x) {
        print "Done another.";
        last ATTEMPT
    }
};


$x=10;

ATTEMPT:{
   do_onething
}

ATTEMPT:{
  for ('A'..'Z') {
    print $_;
    do_another;
  }
}