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<math.h>
#include<iostream>
#include<vector>
#include<algorithm>
#include<string>
using namespace std;

#define DN          int main()
#define li          long long int
#define test()      int t;cin>>t;while(t--)
#define fast()      ios_base::sync_with_stdio(false);cin.tie(NULL);

#define DEC         int i,n,j,cnt=0,flag;
#define mx          100005

#define ff(s,e)         for(i=s;i<e;i+=r)
#define bf(s,e)         for(i=s;i>e;i-=r)
#define ff2(j,s,e,r)    for(j=s;j<e;j+=r)
#define bf2(j,s,e,r)    for(j=s;j>e;j-=r)

void inline inout()
{
    #ifndef ONLINE_JUDGE
    freopen("F:/Problem Solving/Online judges/input.txt","r",stdin);
    freopen("F:/Problem Solving/Online judges/output.txt","w",stdout);
    #endif
}


DN
{
    fast();
    //inout();

    char st[3];
    int num;
    
    cin>>st;
    num=0;
    for(int i=0;i<3;i++)
    {
      while(st[i]=='R')
      {
        i++;
        num++;
      }
        
    }

  cout<<num<<endl;
    return 0;
}