import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String str = sc.nextLine();
int c=0;
for(int i=str.length()-1;i>=0;i--){
if(str.charAt(i)!=' ') c++;
else break;
}
System.out.println(c);
}
}