## Chapter 7 ##

### 99 Bottles of Beer on the Wall
    bottles_number = 99
    while bottles_number > 0
        puts bottles_number.to_s + ' Bottles of Beer on the Wall'
        bottles_number = bottles_number - 1
    end

### Deaf grandma

    message_to_grandma = gets.chomp
    while message_to_grandma != 'BYE'
        if message_to_grandma == message_to_grandma.upcase
            puts 'NO, NOT SINCE '+ (rand(20)+ 1930).to_s + '!'
        else
            puts 'HUH?! SPEAK UP, SONNY!'
        end
            message_to_grandma = gets.chomp
    end

### Deaf grandma extended
    saying_bye = 0
    while saying_bye <3
        message_to_grandma = gets.chomp
        if message_to_grandma == message_to_grandma.upcase
            if message_to_grandma == 'BYE'
	        saying_bye = saying_bye + 1
	        puts '...'
	    else
	        puts 'NO, NOT SINCE '+ (rand(20)+ 1930).to_s + '!'
	    end
        else
            puts 'HUH?! SPEAK UP, SONNY!'
        end
    end

### Leap years