import java.util.Scanner;                                                                                                 // import java.util.*
public class A {

    public static void main(String[] args) {
        /* Scanner A=new Scanner(System.in);
         System.out.print("請輸入大寫字母：");
         String str=A.next();

         System.out.println("輸出小寫字母："+str.toLowerCase());*/                                  //toUpperCase :大寫轉小寫

          Scanner A=new Scanner(System.in);
         System.out.print("請輸入小寫字母：");

         String str=A.next();                                                                                               //字母用String

         System.out.println("輸出大寫字母："+str.toUpperCase());                                   //toUpperCase :小寫轉大寫

    }

}

/* Scanner a=new Scanner(System.in);

   Systrm.out.print("b:");

   int b=scanner.nextInt;*/