Count how many words end with 's'.

Difficulty: Medium

Phase: 5 · Strings

XP Reward: 20 XP

Topics: Strings, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Given a sentence, count how many words end with the letter 's' (case-insensitive). Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: cats dogs and birds

Output: 3

Explanation: Sample execution for input cats dogs and birds