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§ § V 0 (1, 10, 1) § § X^{2} + § § V 1 (10) § § X § § V 7 (- 10, 1, 1) § § = § § V 2 (1, 10, 3) § § X^{2} + § § V 4 (9) § § Y § § V 5 (- 10, 1, 1) § § X § § V 8 (- 20, 1, 1) § §