Bobby stands 10 feet from Sam, and Eric stands 8 feet from Bobby. What is the least number of feet that Eric could be from Sam?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Bobby stands 10 feet from Sam, and Eric stands 8 feet from Bobby. What is the least number of feet that Eric could be from Sam?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2
Bobby stands 10 feet from Sam, and Eric stands 8 feet from Bobby. What is the least number of feet that Eric could be from Sam?
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