### Instruction: there are 79 people that own pets . 15 people own only dogs , 10 people own only cats , 5 people own only cats and dogs , 3 people own cats , dogs and snakes . how many total snakes are there ? Let's write a Python program.### Response: n0 = 79.0
n1 = 15.0
n2 = 10.0
n3 = 5.0
n4 = 3.0
t0 = n1 + n2
t1 = n3 + t0
t2 = n4 + t1
t3 = n0 - t2
answer = n4 + t3
print(answer)