A boy squirrel gathers 6 walnuts and carries them to his burrow in the tree, adding to the 12 already there, and dropping 1 on the way. The girl squirrel brings 5 more walnuts to their burrow and eats 2.  How many walnuts are left?
With the boy’s contribution, there are 12 + 6 = <<12+6=18>>18 walnuts.
When he drops 1, now they have 18 - 1 = <<18-1=17>>17 walnuts.
The girl adds to their stash, making the count 17 + 5 = <<17+5=22>>22 walnuts.
When the girl eats 2, the final count is 22 - 2 = <<22-2=20>>20 walnuts.
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Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
You are solving math problems. Here are some examples of how to solve the task:

Kara mixes cups of sugar and water in the ratio of 1:2 to make one liter of lemonade. Calculate the total number of cups of sugar used if she used 84 cups to make lemonade.The total ratio for the cups of sugar and water needed to make lemonade is 1+2 = <<1+2=3>>3
In the 3 cups needed to make one liter of lemonade, the fraction representing the cups of sugar needed is 1/3.
If she used 84 cups while making lemonade, she used 1/3*84 = <<84*1/3=28>>28 cups of sugar.
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It takes Jennifer 20 minutes to groom each of her 2 long hair dachshunds.  If she grooms her dogs every day, how many hours does she spend grooming her dogs in 30 days?She has 2 dogs and it takes 20 minutes to groom just 1 dog so it takes her 2*20 = <<2*20=40>>40 minutes per day to groom 2 dogs
In 30 days, she will have spent 30*40 = <<30*40=1200>>1,200 minutes grooming her dogs
There are 60 minutes in an hour so she spends 1200/60 = <<1200/60=20>>20 hours grooming her dogs
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Now, solve this next question in the style of the above examples:

A boy squirrel gathers 6 walnuts and carries them to his burrow in the tree, adding to the 12 already there, and dropping 1 on the way. The girl squirrel brings 5 more walnuts to their burrow and eats 2.  How many walnuts are left?

### Response:
With the boy’s contribution, there are 12 + 6 = <<12+6=18>>18 walnuts.
When he drops 1, now they have 18 - 1 = <<18-1=17>>17 walnuts.
The girl adds to their stash, making the count 17 + 5 = <<17+5=22>>22 walnuts.
When the girl eats 2, the final count is 22 - 2 = <<22-2=20>>20 walnuts.
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