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x2 + y2 + 8x + 6y = 0
x2 + y2 + 10x + 6y = 0
x2 + y2 + 12x + 6y = 0
x2 + y2 + 5x + 6y = 0
x2 + y2 + 6x + 6y = 0
ANS : 1
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