Let $M$ and $N$ denote the greatest and least positive two-digit multiples of 13. What is the value of $M + N$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Let $M$ and $N$ denote the greatest and least positive two-digit multiples of 13. What is the value of $M + N$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
104
Let $M$ and $N$ denote the greatest and least positive two-digit multiples of 13. What is the value of $M + N$?
train