answer is correct but not verifying
package com.codegym.task.task08.task0823;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.String;
/*
Going national
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String s = reader.readLine();
String[] tokens = s.split("\\s");
s = "";
for(int i = 0; i < tokens.length; i++){
char capLetter = Character.toUpperCase(tokens[i].charAt(0));
s += " " + capLetter + tokens[i].substring(1);
}
s = s.trim();
System.out.println(s);
}
}