package me.yukicoder;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class No0436 {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String input = br.readLine();
		int length = input.length();
		int ans = 0;
		int left = input.indexOf("ccw");
		int mid = (length % 2 == 0)? length / 2 - 1: length / 2;
		
		if (left <= mid) {
			ans = left + 1;// to left
		}
		else {
			ans = length - left - 2;// to right
		}
		System.out.println(ans);
	}
}