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 (Clang 10.0.0) (judge verdict: Wrong Answer)

//https://atcoder.jp/contests/abc175/tasks/abc175_a
#include <stdio.h>
#include <string.h>

int main() {
    
    char A[3][10];
    char R[1]= "R";
    
    for(int i=0; i<3; i++){
        scanf("%s", A[i]);
    }
    
    if(strcmp(A[0], A[1])==0&&strcmp(A[1], A[2])==0){
        if(strcmp(A[0], R)==0)
            printf("%d", 3);
        else
            printf("%d", 0);
    }
    else if(strcmp(A[0], A[1])==0&&strcmp(A[1], A[2])!=0){
        if(strcmp(A[0], R)==0)
            printf("%d", 2);
        else
            printf("%d", 1);
    }
    else if(strcmp(A[0], A[1])!=0&&strcmp(A[1], A[2])==0){
        if(strcmp(A[1], R)==0)
            printf("%d", 2);
        else
            printf("%d", 1);
    }
    else if(strcmp(A[0], A[2])==0&&strcmp(A[0], A[1])!=0){
            printf("%d", 1);
    }
    
    return 0;
}