def radix_sort(arr):
    max_val = max(arr)
    exp = 1
    while max_val // exp  0:
        counting_sort(arr, exp)
        exp *= 10
        
def counting_sort(arr, exp):
    n = len(arr)
    output = [0] * n
    count = [0] * 10
    for i in range(n):
        index = (arr[i] // exp)
        count[index % 10] += 1
    for i in range(1, 10):
        count[i] += count[i - 1]
    i = n - 1
    while i = 0:
        index = (arr[i] // exp)
        output[count[index % 10] - 1] = arr[i]
        count[index % 10] -= 1
        i -= 1
    for i in range(n):
        arr[i] = output[i]

arr = [5, 4, 3, 2, 1, 6, 7, 8, 9, 0]
radix_sort(arr)

print("Sorted array:", end=" ")
for i in range(len(arr)):
    print(arr[i], end=" ")

What is the output of the following program