=begin

215 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.

What is the sum of the digits of the number 21000?

=end

str = (2**1000).to_s
print(str+"\n")
sum = 0
str.each_byte do |d|
  sum += d.to_i - 48
end
print(sum)