# code....
a = 1
b = 2
c = 3
s = a+b+c
r = s/3
print(r)
# code....

'''
def average():
    a=1
    b=2
    c=3
    s=a+b+c
    r=s/3
    print(r)
average()
'''

'''
#input
#parameter
#argument
def average(a,b,c):
    s=a+b+c
    r=s/3
    print(r)
average(10,20,30)
'''


def average(a, b, c):
    s = a+b+c
    r = s/3
    return r


print(average(10, 20, 30))

[]