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 <bits/stdc++.h>
#include  <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
#define endl '\n'
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> index_set;
using vi = vector<int>;
#define pb push_back
#define rsz resize
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()

using ii = pair<int,int>;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define mod 1000000007

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);cout.tie(0);
	string s;
	cin >> s;
	int c = 0;
	for(int i = 0; i<sz(s); i++){
		if(s[i] == 'R')
			c++;
		else{
			break;
			}
		}
		cout << c <<endl;
 return 0;
}