puts "Hello human, how old are you?"
age = gets.chomp
age = age.to_i
age_10 = age + 10
age_20 = age + 20
age_30 = age + 30

puts "In 10 years you will be #{age_10}!"
puts "In 20 years you will be #{age_20}!"
puts "In 30 years you will be #{age_30}!"

puts