require 'continuation'

counter = 0
inner_counter = 0

go_to_counter = callcc { |x| x }
counter += 1
puts "I've restarted #{counter} times"

go_to_inner_counter = callcc { |x| x }
inner_counter += 1
puts "I've gone to inner counter #{inner_counter} times"

if (inner_counter % 2).zero?
  go_to_inner_counter.call(go_to_inner_counter)
end

go_to_counter.call(go_to_counter) if counter < 10

puts "OK I'm done"