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 Sis 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