Language: Java

import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// ??´??°?????\???
		int a = sc.nextInt();
		int b = sc.nextInt();
		
		
		int x = a * b;
		int y = (a + b) * 2;

		System.out.print(x);
????????????????????????System.out.print("???");
????????????????????????System.out.print(y);

		
	}
}

Compiler output:
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
 ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
  ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
   ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
    ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
     ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
      ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
       ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
        ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
         ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
          ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
           ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
            ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
             ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
              ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
               ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                 ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                  ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                   ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                    ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                     ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                      ^
Main.java:14: error: illegal start of expression
????????????????????????System.out.print("???");
                       ^
Main.java:14: error: : expected
????????????????????????System.out.print("???");
                                               ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
 ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
  ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
   ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
    ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
     ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
      ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
       ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
        ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
         ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
          ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
           ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
            ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
             ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
              ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
               ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                 ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                  ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                   ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                    ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                     ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                      ^
Main.java:15: error: illegal start of expression
????????????????????????System.out.print(y);
                       ^
Main.java:15: error: : expected
????????????????????????System.out.print(y);
                                           ^
50 errors