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
        }
    }
}