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2y 1 dx 2x 3 dy 0
2y 1 dx 2x 3 dy 0 pictures 5
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2y 1 dx
2y 1 dx 2x 3 dy 0
x y 1 dx 2x 2y 3 dy 0
x 2y 1 dx 2x 3 dy 0
2y 1 dx 2x 3 dy 0
