BotClean Large

def next_move(posx, posy, dimx, dimy, board):
    #Helper function to check if a given cell is dirty or not
    def isDirty(board, i, j):
        if board[i][j] == "d":
            return True
        else:
            return False
    #Helper function to print the next move
    def printNextMove(nextx, nexty):
        if nextx < posx:
            print("UP")
        elif nextx > posx:
            print("DOWN")
        elif nexty < posy:
            print("LEFT")
        elif nexty > posy:
            print("RIGHT")
        else:
            print("CLEAN")
    #If the current cell is dirty, CLEAN it and return
    if isDirty(board, posx, posy):
        printNextMove(posx, posy)
        return
    #If the current cell is clean, look for a dirty cell around it
    for i in range(posx-1, posx+2):
        for j in range(posy-1, posy+2):
            #Make sure that the indices are valid and the cell is dirty
            if i >= 0 and i < dimx and j >= 0 and j < dimy and isDirty(board, i, j):
                #If a dirty cell is found, print the next move and return
                printNextMove(i, j)
                return
    #If no dirty cell is found, the next move is to move DOWN
    printNextMove(posx+1, posy)

if __name__ == "__main__":
    pos = [int(i) for i in input().strip().split()]
    dim = [int(i) for i in input().strip().split()]
    board = [[j for j in input().strip()] for i in range(dim[0])]
    next_move(pos[0], pos[1], dim[0], dim[1], board)