package no436;

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		int min = Integer.MAX_VALUE;
		int max = Integer.MIN_VALUE;
		for(int i=0;i<s.length()-2;i++) {
			if (s.substring(i, i+3).equals("ccw")) {
				min = Math.min(min, i);
				max = Math.max(max, i);
			}
		}
		if (min == Integer.MAX_VALUE) {
			System.out.println(0);
		}else{
//			System.out.println(max + 1);
//			System.out.println(s.length() - min - 2);
			System.out.println(Math.min(max + 1, s.length() - min - 2));
		}
	}

}