code4.txt

import java.util.*;

class Codechef {
    public static void main(String[] args) throws java.lang.Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        sc.nextLine(); 
        for (int i = 0; i < n; i++) {
            String s = sc.nextLine();
            String[] words = s.split(" ");
            for (int j = 0; j < words.length; j++) {
                String firstLetter = words[j].substring(0, 1);
                String restOfWord = words[j].substring(1);
                if (firstLetter.equals(firstLetter.toUpperCase())) {
                    words[j] = firstLetter + restOfWord;
                } else if(words[j].equals(words[j].toUpperCase())) {
                    words[j]=words[j];
                }
                else{
                    firstLetter = firstLetter.toUpperCase();
                    words[j] = firstLetter + restOfWord.toLowerCase();
                }
            }
            String sen = String.join(" ", words);
            System.out.println(sen);
        }
    }
}