题解 | #字符串最后一个单词的长度#

import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String s = reader.readLine();
        String[] str = s.split(" ");
        int n = str.length;
        System.out.println(str[n - 1].length());
        
    }
}