'''name = input()

print('You entered', name)
'''
'''
a = int(input('Enter a: '))
b = int(input('Enter b: '))

print(type(a))
print(type(b))

c = a * b

print(c)
'''
#WAP to calculate avg

Eng = int(input('Enter English marks: '))
Sci = int(input('Enter Science marks: '))
Math = int(input('Enter Math marks: '))
Avg = (Eng + Sci + Math) / 3
print(Avg)
print(type(Avg))