<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 In the arithmetic sequence {a_n}, a_1 = -2011, and the sum of its first n terms is S_n. Given the equation S_2010/2010 - S_2008/2008 = 2, calculate the value of S_2011. Express your answer as an integer. Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
-2011
In the arithmetic sequence {a_n}, a_1 = -2011, and the sum of its first n terms is S_n. Given the equation S_2010/2010 - S_2008/2008 = 2, calculate the value of S_2011. Express your answer as an integer.
test