7028: ABC175 —— A - Rainy Season
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Description
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.
Find the maximum number of consecutive rainy days in this period.
Input
Input is given from Standard Input in the following format:
$S$
$S$
Output
Print the maximum number of consecutive rainy days in the period.
Constraints
$∣S∣=3$
Each character of $S$ is S or R.
Each character of $S$ is S or R.
Sample 1 Input
RRS
Sample 1 Output
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 2 Input
SSS
Sample 2 Output
0
It was sunny throughout the period. We had no rainy days, so we should print $0$.
Sample 3 Input
RSR
Sample 3 Output
1
We had rain on the $1$-st and $3$-rd days - two "streaks" of one rainy day, so we should print $1$.