char

import java.util.Scanner;
public class Question {

	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);
		System.out.println("Enter capital letter");
		char big_char = in.next().charAt(0);
		char small_char = (char)(big_char + 32);
		System.out.println(small_char);

	}

}