def arithmetic_operations(arr: list):
MAX = max(arr)
MIN = min(arr)
SUM = sum(arr)
AVG = SUM/len(arr)
return (SUM, AVG, MAX, MIN)
if __name__ == '__main__':
arr = [5, 8, 9, 12, 50, 3, 1]
# for all data
sum_arr, avg_arr, max_arr, min_arr = arithmetic_operations(arr)
print("CASE 1 ", sum_arr, avg_arr, max_arr, min_arr)
#for only avg and max
_, avg_arr, max_arr, _ = arithmetic_operations(arr)
print("CASE 2 ", avg_arr, max_arr)
# for only sum and min
sum_arr, *_, min_arr = arithmetic_operations(arr)
print("CASE 3 ", sum_arr, min_arr)