AMC 8 2020 Problem 25

Rectangles $R_1$ and $R_2,$ and squares $S_1, S_2,\,$ and $S_3,$ shown below, combine to form a rectangle that is 3322 units wide and 2020 units high. What is the side length of $S_2$ in units?

$\textbf{(A) }651 \textbf{(B) }655 \textbf{(C) }656 \textbf{(D) }662 \textbf{(E) }666$