Test

#until loop
counter = 1
until counter == 10
puts counter
counter +=1
end
puts counter

#until loop
i = 0
until i == 6
  i+=1
end
puts i


#while loop
counter = 1
while counter <11
  puts counter
counter +=1
end


#case example
user_input = $stdin.gets.chomp
user_input.downcase!
case user_input
  when 3
      puts "£££"
  when 2 
      puts "££"
  when 1
      puts "£"
end


#Case Example.
current_energy = 3

case current_energy
when 3
    puts "Energy is 3"
when 2
    puts "Energy is 2"
when 1
    puts "Energy is 1"
else 
    puts "Nil"
end