Write a python function to find the sum of fifth power of first n even natural numbers.
def even_Power_Sum(n): 
    sum = 0; 
    for i in range(1,n+1): 
        j = 2*i; 
        sum = sum + (j*j*j*j*j); 
    return sum; 
<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 fifth power of first n even natural numbers.
def even_Power_Sum(n): 
    sum = 0; 
    for i in range(1,n+1): 
        j = 2*i; 
        sum = sum + (j*j*j*j*j); 
    return sum; [/INST]assert even_Power_Sum(2) == 1056
assert even_Power_Sum(3) == 8832
assert even_Power_Sum(1) == 32</s>