Изменения

<tex>\frac{1}{p(p-1)} \left(\frac{p}{2^n} \right)^2 \le P(r\ mod\ 2^n = y_1 \land s\ mod\ 2^n=y_2) \le \frac{1}{p(p-1)} \left( \frac{p}{2^n}+1 \right)^2 </tex>

<tex>h_{a, b} \in H_{n, n}</tex>