View Compilation Error

0_0_6445950_28789\Main.java:1: class, interface, or enum expected
01.import java.util.Scanner;  
^
0_0_6445950_28789\Main.java:2: class, interface, or enum expected
02.import java.math.BigInteger;  
^
0_0_6445950_28789\Main.java:3: class, interface, or enum expected
03.public class Main1002 {  
^
0_0_6445950_28789\Main.java:4: illegal start of type
04.   public static void main(String[] args) {  
^
0_0_6445950_28789\Main.java:4: ';' expected
04.   public static void main(String[] args) {  
   ^
0_0_6445950_28789\Main.java:5: not a statement
05.       Scanner sc = new Scanner(System.in);   
^
0_0_6445950_28789\Main.java:5: ';' expected
05.       Scanner sc = new Scanner(System.in);   
   ^
0_0_6445950_28789\Main.java:6: not a statement
06.       boolean flag = false;  
^
0_0_6445950_28789\Main.java:6: ';' expected
06.       boolean flag = false;  
   ^
0_0_6445950_28789\Main.java:7: not a statement
07.       int n = sc.nextInt();  
^
0_0_6445950_28789\Main.java:7: ';' expected
07.       int n = sc.nextInt();  
   ^
0_0_6445950_28789\Main.java:8: not a statement
08.             
^
0_0_6445950_28789\Main.java:8: ';' expected
08.             
   ^
0_0_6445950_28789\Main.java:10: not a statement
10.           BigInteger a = sc.nextBigInteger();  
^
0_0_6445950_28789\Main.java:10: ';' expected
10.           BigInteger a = sc.nextBigInteger();  
   ^
0_0_6445950_28789\Main.java:11: not a statement
11.           BigInteger b = sc.nextBigInteger();         
^
0_0_6445950_28789\Main.java:11: ';' expected
11.           BigInteger b = sc.nextBigInteger();         
   ^
0_0_6445950_28789\Main.java:12: not a statement
12.                 
^
0_0_6445950_28789\Main.java:12: ';' expected
12.                 
   ^
0_0_6445950_28789\Main.java:14: not a statement
14.               System.out.println();  
^
0_0_6445950_28789\Main.java:14: ';' expected
14.               System.out.println();  
   ^
0_0_6445950_28789\Main.java:15: not a statement
15.           }  
^
0_0_6445950_28789\Main.java:15: ';' expected
15.           }  
   ^
0_0_6445950_28789\Main.java:16: not a statement
16.              
^
0_0_6445950_28789\Main.java:16: ';' expected
16.              
   ^
0_0_6445950_28789\Main.java:18: not a statement
18.           System.out.println(a + " + " + b + " = " + a.add(b));  
^
0_0_6445950_28789\Main.java:18: ';' expected
18.           System.out.println(a + " + " + b + " = " + a.add(b));  
   ^
0_0_6445950_28789\Main.java:19: not a statement
19.           flag=true;                                 
^
0_0_6445950_28789\Main.java:19: ';' expected
19.           flag=true;                                 
   ^
0_0_6445950_28789\Main.java:20: not a statement
20.       }  
^
0_0_6445950_28789\Main.java:20: ';' expected
20.       }  
   ^
0_0_6445950_28789\Main.java:21: not a statement
21.   }      
^
0_0_6445950_28789\Main.java:21: ';' expected
21.   }      
   ^
0_0_6445950_28789\Main.java:22: illegal start of type
22.}