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>
#include<stdlib.h>
#include<string.h>
#include<math.h>
int main()
{
    #ifndef ONLINE_JUDGE
    freopen("input.txt","r",stdin);
	freopen("output.txt","w",stdout);
    #endif

	int c=0,z;
    char a[100];
    gets(a);
    z=strlen(a);
    for (int i = 0; i < z; ++i)
    {
    	if(a[i]=='R'&&a[i+1]=='R')
    		c++;
    }
    if(c>0)
    printf("%d\n",c+1 );
	else
		printf("0\n");



    
}