import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); String s1 = sc.next(); String s2 = sc.next(); String s3 = sc.next(); sc.close(); StringBuilder sb = new StringBuilder(); sb.append(Character.toUpperCase(s1.charAt(0))); sb.append(Character.toUpperCase(s2.charAt(0))); sb.append(Character.toUpperCase(s3.charAt(0))); System.out.println(sb.toString()); } }