import java.util.Scanner;

public class Ccw {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		String str = s.next();
		s.close();
		int left = 0,right = 0;
		left = str.indexOf("ccw");
		right = str.length()-1-(left +1);
		System.out.println(Integer.min(left+1,right));

	}

}