파이썬

# x,y,z = input().split(':')
# print(y)
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# x,y =input().split(' ')
# print(x,y,sep='')
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# x,y = input().split(' ')
# z= int(x)+int(y)
# print(z)
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# x = float(input())
# y = float(input())
# z = float(x)+float(y)
# print(z)
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# x = input()
# y = int(x)
# print('%x'% y)
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# x = input()
# y = int(x)
# print('%X'% y)
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# x = input()
# y = int(x,16)
# print('%o'% y)
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# x = ord(input())                      ord(x) 유니코드로 받는다
# print(x)
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# x=int(input())
# print(chr(x))                           chr(x) 반대로 변환시켜서 출력
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# x=int(input())
# print(-x)
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# x = input()
# x = ord(x)
# print(chr(x+1))
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# x,y = input().split()
# z=int(x)-int(y)
# print(z)
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# 산술연산자: + - * / % ... , // **
# print(10 // 3)
# /: 나누기 연산자
# //: 몫 연산자

# print(2 ** 5)

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# x,y = input().split()
# z=float(x)*float(y)
# print(z)
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# x, y = input().split()
# print(x*int(y))
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# x=input()
# y=input()
# print(int(x)*y)
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# x,y = input().split()
# x = int(x)
# y = int(y)
# z= x**y
# print(z)
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# x,y = input().split()
# x = float(x)
# y = float(y)
# z= x**y
# print(z)
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# x, y = input().split()
# x = int(x)
# y = int(y)
# z = x//y
# print(z)
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# x, y = input().split()
# x = int(x)
# y = int(y)
# z = x%y
# print(z)
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# x=input()
# x=float(x)
# print(format(x, ".2f"))
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# x,y =input().split()
# x=float(x)
# y=float(y)
# z=x/y
# print(format(z, ".3f"))
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# x,y =input().split()
# x=int(x)
# y=int(y)
# z=x+y
# c=x-y
# v=x*y
# b=x//y
# n=x%y
# m=x/y
# print(z,c,v,b,n,format(m, ".2f"),sep='\n')
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x,y,z=input().split()
x = int(x)
y = int(y)
z = int(z)
c=x+y+z
v=(x+y+z)/3
v=float(v)
print(c,format(v, ".2f"),sep=' ')
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