Problem:
Score: 100 points

Problem Statement

The weather in Takahashi's town changes day by day, in the following cycle: Sunny, Cloudy, Rainy, Sunny, Cloudy, Rainy, ...

Given is a string S representing the weather in the town today. Predict the weather tomorrow.

Constraints

S is Sunny, Cloudy, or Rainy.

Input

Input is given from Standard Input in the following format:

S

Output

Print a string representing the expected weather tomorrow, in the same format in which input is given.

Sample Input 1

Sunny

Sample Output 1

Cloudy

In Takahashi's town, a sunny day is followed by a cloudy day.

Sample Input 2

Rainy

Sample Output 2

Sunny

Solution in Ruby (2.3.3) (judge verdict: Wrong Answer)

S = gets.chomp.split("")
flag = 1

S.size.times do |i|
    if (i + 1) % 2 == 0 && S[i] == "R"
        flag = 0
        break
    elsif (i + 1) % 2 == 1 && S[i] == "L"
        flag = 0
        break
    end
end

if flag == 0
    puts "No"
else
    puts "Yes"
end