number_1 = int(input())
number_2 = int(input())
number_3 = int(input())
average = (number_1 + number_2 + number_3) / 3
print(average)

61b47b319a5e4f1ffa0708da920546bd51208b56
<mask token>

<mask token>
print(average)

number_1 = int(input())
number_2 = int(input())
number_3 = int(input())
average = (number_1 + number_2 + number_3) / 3
print(average)
