# No.1249 小学校1年生の夢
# https://yukicoder.me/problems/no/1249
Warning[:experimental] = false

def calc(input)
#   input.split(" ").map(&:to_i).then { |a, b, c|
#     a + b == c ? "Correct" : "Incorrect"
#   }
  case input.split(" ").map(&:to_i)
  in [a, b, c] if a + b == c
    "Correct"
  else
    "Incorrect"
  end
end

# input = "4 1 5"
input = gets
puts calc(input)