Problem:
Score : 100 points

Problem Statement

We have weather records at AtCoder Town for some consecutive three days. A string of length 3, S, represents the records - if the i-th character is S, it means it was sunny on the i-th day; if that character is R, it means it was rainy on that day.

Find the maximum number of consecutive rainy days in this period.

Constraints

|S| = 3

Each character of S is S or R.

Input

Input is given from Standard Input in the following format:

S

Output

Print the maximum number of consecutive rainy days in the period.

Sample Input 1

RRS

Sample Output 1

2

We had rain on the 1-st and 2-nd days in the period. Here, the maximum number of consecutive rainy days is 2, so we should print 2.

Sample Input 2

SSS

Sample Output 2

0

It was sunny throughout the period. We had no rainy days, so we should print 0.

Sample Input 3

RSR

Sample Output 3

1

We had rain on the 1-st and 3-rd days - two "streaks" of one rainy day, so we should print 1.

Solution in C (GCC 9.2.1) (judge verdict: Wrong Answer)

#include<stdio.h>
 
int main(){
  int i,j,k;
  
  int N;
  scanf("%d",&N);
  
  int L[N];
  for(i=0;i<N;i++){
    scanf("%d ",&L[i]);
  }
  
  int c=0;
  
  for(i=0;i<N;i++){
    for(j=i+1;j<N;j++){
      for(k=j+1;k<N;k++){
        if(L[i]+L[j]>L[k]&&L[i]+L[k]>L[j]&&L[j]+L[k]>L[i]){
          c++;
        }
      }
    }
  }
  printf("%d\n",c);
  return 0;
}