user
1  11  21  1211  111221  312211  13112221  1113213211  31131211131221  13211311123113112211                                  What number comes next?
A: 11131221133112132113212221
B: may
C: fewness
D: summons
E: 1931
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

A

<|end_of_solution|>