gistfile1.txt

$i = 0;
$j = 0;
$k = 0

for i in 0..19
  
  $i +=1;
  
  until $j == ($i - 1)
    $j +=1;
  end
  
  begin
     $k +=1;
  end while $k < $i
  
  puts "i = #{$i}"
  puts "j = #{$j}"
  puts "k = #{$k}"
  puts "i again = #{$i}"
  
  puts '-------------'  

end