! " #$%&' ( %)* +#,- ' ./0 1 2 1 2 1 2 1 2 3 456 789 4: ;< $= /*9 > .' . $? .!/ : ;< b a ∈ ≠ b a d c ≠ ! "#$ $ %$& '() #$* $* +, - ". /012 &3 . 45 . 4 6 4 17 8 8 **9 @3A. B '> C" : ;< 1): 1; b a #$ b a D <= >?@ . AB C 1): DEF "; G> 5HI b a J 5H b a− . K 1"5; b a #$ a b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`712>. 4 3R.%VLQ *81 U681 UV81 UY81 3TU*#Q :*QD C ! * 6 J 6 * 6 J Y * * Jaa bL6 V 6 J* * 6 Jaaa 4B*6*J8J*8ZXJaa :*@Q *6 8− V 8 [ X * [ *6 * [ *6 Y *6 8−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