2020 AMC 8 Problems/Problem 25

$25.$ 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?

[asy] draw((0,0)--(5,0)--(5,3)--(0,3)--(0,0)); draw((3,0)--(3,1)--(0,1)); draw((3,1)--(3,2)--(5,2)); draw((3,2)--(2,2)--(2,1)--(2,3)); label(" $R_1$ ",(3/2,1/2)); label(" $S_3$ ",(4,1)); label(" $S_2$ ",(5/2,3/2)); label(" $S_1$ ",(1,2)); label(" $R_2$ ",(7/2,5/2)); [/asy]

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

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2020 AMC 8 Problems/Problem 25