Dave's sister baked $3$ dozen pies of which a third contained chocolate, a quarter contained marshmallows, a sixth contained cayenne, and one twelfth contained salted soy nuts.  What is the smallest possible number of pies that had none of these ingredients?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Dave's sister baked $3$ dozen pies of which a third contained chocolate, a quarter contained marshmallows, a sixth contained cayenne, and one twelfth contained salted soy nuts.  What is the smallest possible number of pies that had none of these ingredients?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
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Dave's sister baked $3$ dozen pies of which a third contained chocolate, a quarter contained marshmallows, a sixth contained cayenne, and one twelfth contained salted soy nuts.  What is the smallest possible number of pies that had none of these ingredients?
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