Write a python function to find the sum of repeated elements in a given array.
def find_Sum(arr,n): 
    return sum([x for x in arr if arr.count(x) > 1])
<s>[INST]<<SYS>>Given a task and its code, generate test cases for the code.<</SYS>>Write a python function to find the sum of repeated elements in a given array.
def find_Sum(arr,n): 
    return sum([x for x in arr if arr.count(x) > 1])[/INST]assert find_Sum([1,2,3,1,1,4,5,6],8) == 3
assert find_Sum([1,2,3,1,1],5) == 3
assert find_Sum([1,1,2],3) == 2</s>