Write a python function to find the element occurring odd number of times.
def get_Odd_Occurrence(arr,arr_size):   
    for i in range(0,arr_size): 
        count = 0
        for j in range(0,arr_size): 
            if arr[i] == arr[j]: 
                count+=1     
        if (count % 2 != 0): 
            return arr[i]     
    return -1
<s>[INST]<<SYS>>Given a task and its code, generate test cases for the code.<</SYS>>Write a python function to find the element occurring odd number of times.
def get_Odd_Occurrence(arr,arr_size):   
    for i in range(0,arr_size): 
        count = 0
        for j in range(0,arr_size): 
            if arr[i] == arr[j]: 
                count+=1     
        if (count % 2 != 0): 
            return arr[i]     
    return -1[/INST]assert get_Odd_Occurrence([1,2,3,1,2,3,1],7) == 1
assert get_Odd_Occurrence([1,2,3,2,3,1,3],7) == 3
assert get_Odd_Occurrence([2,3,5,4,5,2,4,3,5,2,4,4,2],13) == 5</s>