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If 1 p q 1 q r 1 r p
If 1 p q 1 q r 1 r p pictures 5
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If 1 p q 1 q
If 1 p q 1 q r 1 r p
if p q r pqr 1 p 1 q 1 r 1
if 1 p q 1 q r 1 r p are in ap then
