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 C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
#include<string.h>

#define   WEATHER_SIZE	3
#define	  WEATHER_STR_LEN  8
void main(void)
{
  int i = 0;
  char weather[WEATHER_SIZE][WEATHER_STR_LEN] = {"Sunny", "Cloudy", "Rainy"};
  char input[16] = {'\0'};
  
  sscanf("%s", input);
  
  for(i=0; i<WEATHER_SIZE; i++)
  {
    if (strcmp(input, weather[i]) == 0)
    {
      printf("%s", weather[(i+1)%WEATHER_SIZE]);
      break;
    }
  }
  if (i==WEATHER_SIZE)
  {
    printf("unknown");
  }
  
  return;
}