
    Write a function that analyzes a customer's transaction history to identify the highest potential fraud exposure by rearranging individual transaction amounts into the largest possible value. The function should take a list of single-digit transaction amounts and combine them to determine the maximum financial risk value. This analysis helps the bank's fraud detection system assess the worst-case scenario for potential unauthorized transactions.
    

    
def find_Max_Num(arr):
    """
    Write a function that analyzes a customer's transaction history to identify the highest potential fraud exposure by rearranging individual transaction amounts into the largest possible value. The function should take a list of single-digit transaction amounts and combine them to determine the maximum financial risk value. This analysis helps the bank's fraud detection system assess the worst-case scenario for potential unauthorized transactions.
    

    """
def find_Max_Num(arr):
    """
    Write a function that analyzes a customer's transaction history to identify the highest potential fraud exposure by rearranging individual transaction amounts into the largest possible value. The function should take a list of single-digit transaction amounts and combine them to determine the maximum financial risk value. This analysis helps the bank's fraud detection system assess the worst-case scenario for potential unauthorized transactions.
    

    """
    n = len(arr)
    arr.sort(reverse=True)
    num = arr[0]
    for i in range(1, n):
        num = num * 10 + arr[i]
    return num