function getNode(llist, positionFromTail) {
    // Write your code here
    var currentNode = llist;
    var len = 0
    var arr = [];
    if(llist==null){
        return false;
    }
    while(currentNode){
        len++;
        arr.unshift(currentNode.data)
        currentNode = currentNode.next
    }
        if(positionFromTail>len || positionFromTail<0){
            return false
        }

    return arr[positionFromTail]
    
}