module NuisanceBalls
  def solve(n)
    a = []
    [720, 360, 180, 30, 6, 1].reduce(n) do |x, y|
      a << x / y
      x % y
    end
    s = 'CMSRo.'
    a.zip(s.each_char).reduce(''){|x, (y, z)| x + z * y}
  end
  module_function :solve
end

if $0 == __FILE__
  n = gets.chomp.to_i
  puts NuisanceBalls.solve(n)
end