Language: C++

import java.util.*;

class Main {
	public static void main(String args[]){
		Scanner in = new Scanner(System.in);
		while(true){
			int h = in.nextInt(), w = in.nextInt();
			if(w==0 && h==0) return ;
			String board[] =  new String[h];
			for(int i=0; i<h; i++){
				board[i] = in.next();
			}
			int cx = 0, cy = 0;
			boolean isLoop = false;
			HashSet<Integer> s = new HashSet<Integer>();
			while(board[cy].charAt(cx) != '.'){
				char c = board[cy].charAt(cx);
				cx += (c == '>')?1:(c == '<')?-1:0;
				cy += (c == '^')?-1:(c == 'v')?1:0;
				if(s.contains(new Integer(cx*10000+cy))){
					isLoop = true;
					break;
				}
				else{
					s.add(new Integer(cx*10000+cy));
				}
			}
			if(isLoop){
				System.out.println("LOOP");
			}
			else{
				System.out.println(cx + " " + cy);
			}
		}
	}
	
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:15: error: expected ':' before 'static'
    4 |         public static void main(String args[]){
      |               ^~~~~~~
      |               :
a.cc:4:33: error: 'String' has not been declared
    4 |         public static void main(String args[]){
      |                                 ^~~~~~
a.cc:37:2: error: expected ';' after class definition
   37 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:5:17: error: 'Scanner' was not declared in this scope
    5 |                 Scanner in = new Scanner(System.in);
      |                 ^~~~~~~
a.cc:7:33: error: 'in' was not declared in this scope; did you mean 'int'?
    7 |                         int h = in.nextInt(), w = in.nextInt();
      |                                 ^~
      |                                 int
a.cc:8:28: error: 'w' was not declared in this scope
    8 |                         if(w==0 && h==0) return ;
      |                            ^
a.cc:9:25: error: 'String' was not declared in this scope
    9 |                         String board[] =  new String[h];
      |                         ^~~~~~
a.cc:11:33: error: 'board' was not declared in this scope
   11 |                                 board[i] = in.next();
      |                                 ^~~~~
a.cc:14:25: error: 'boolean' was not declared in this scope; did you mean 'bool'?
   14 |                         boolean isLoop = false;
      |                         ^~~~~~~
      |                         bool
a.cc:15:25: error: 'HashSet' was not declared in this scope
   15 |                         HashSet<Integer> s = new HashSet<Integer>();
      |                         ^~~~~~~
a.cc:15:33: error: 'Integer' was not declared in this scope
   15 |                         HashSet<Integer> s = new HashSet<Integer>();
      |                                 ^~~~~~~
a.cc:15:42: error: 's' was not declared in this scope
   15 |                         HashSet<Integer> s = new HashSet<Integer>();
      |                                          ^
a.cc:15:50: error: 'HashSet' does not name a type
   15 |                         HashSet<Integer> s = new HashSet<Integer>();
      |                                                  ^~~~~~~
a.cc:15:67: error: expected primary-expression before ')' token
   15 |                         HashSet<Integer> s = new HashSet<Integer>();
      |                                                                   ^
a.cc:16:31: error: 'board' was not declared in this scope
   16 |                         while(board[cy].charAt(cx) != '.'){
      |                               ^~~~~
a.cc:20:51: error: expected type-specifier before 'Integer'
   20 |                                 if(s.contains(new Integer(cx*10000+cy))){
      |                                                   ^~~~~~~
a.cc:21:41: error: 'isLoop' was not declared in this scope
   21 |                                         isLoop = true;
      |                                         ^~~~~~
a.cc:25:51: error: expected type-specifier before 'Integer'
   25 |                                         s.add(new Integer(cx*10000+cy));
      |                                                   ^~~~~~~
a.cc:28:28: error: 'isLoop' was not declared in this scope
   28 |                         if(isLoop){
      |                            ^~~~~~
a.cc:29:33: error: 'System' was not declared in this scope
   29 |                                 System.out.println("LOOP");
      |                                 ^~~~~~
a.cc:32:33: error: 'System' was not declared in this scope
   32 |                                 System.out.println(cx + " " + cy);
      |                                 ^~~~~~