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5x 4y 2 0
5x 4y 2 0 pictures 5
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5x 4y 2 0
2 5x (- 4y (- 0 1
0 5x 4y 3 2
3x 4y 2 0 5x 2y 14
2x 3y 2 5x 4y 2 0
5x 4y 2 0 3x 4y 18 0
5x 4y 2 0
5x 4y 2 0 2x 3y 13