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View Compilation Error

0_0_18598970_29014.cpp:1:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_18598970_29014.cpp:4:9: error: expected ':' before 'static'
  public static void main(String _[])
         ^
0_0_18598970_29014.cpp:4:26: error: 'String' has not been declared
  public static void main(String _[])
                          ^
0_0_18598970_29014.cpp:15:1: error: expected ';' after class definition
 }
 ^
0_0_18598970_29014.cpp: In static member function 'static void Main::main(int*)':
0_0_18598970_29014.cpp:6:3: error: 'Scanner' was not declared in this scope
   Scanner s=new Scanner(System.in);
   ^
0_0_18598970_29014.cpp:7:9: error: 's' was not declared in this scope
   while(s.hasNext()){
         ^
0_0_18598970_29014.cpp:8:11: error: 'Long' was not declared in this scope
    long i=Long.parseLong(s.next().replaceAll("\\+",""),16)+Long.parseLong
           ^
0_0_18598970_29014.cpp:11:11: error: 'System' was not declared in this scope
    if(i<0)System.out.println("-"+Long.toHexString(-i).toUpperCase());
           ^
0_0_18598970_29014.cpp:12:9: error: 'System' was not declared in this scope
    else System.out.println(Long.toHexString(i).toUpperCase());
         ^


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