Each of the numbers $a_1,$ $a_2,$ $\dots,$ $a_{95}$ is $\pm 1.$  Find the smallest possible positive value of
\[\sum_{1 \le i < j \le 95} a_i a_j.\]
Question:
Each of the numbers $a_1,$ $a_2,$ $\dots,$ $a_{95}$ is $\pm 1.$  Find the smallest possible positive value of
\[\sum_{1 \le i < j \le 95} a_i a_j.\]
Answer:
Let's think step by step.

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13
Each of the numbers $a_1,$ $a_2,$ $\dots,$ $a_{95}$ is $\pm 1.$  Find the smallest possible positive value of
\[\sum_{1 \le i < j \le 95} a_i a_j.\]
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