import java.util.*;
public class Main{
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
while(scanner.hasNext()){
String str = scanner.nextLine();
String[] strs = str.split(" ");//根据题意,通过空格将字符串分隔
System.out.print(strs[strs.length-1].length());//输出数组通过索引获取子元素并返回长度
}
}
}