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    def getNode(llist, positionFromTail):
        # Write your code here
        last_index = llist
        
        for _ in range(positionFromTail):
            last_index = last_index.next
    
        desire_position = llist
        
        while last_index.next:
            last_index = last_index.next
            desire_position = desire_position.next
            
        return desire_position.data