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s↑.link:=p↑.link;p↑.link:=s q↑.link:=s;s↑.link:=p p↑.link:=s↑.link;s↑.link:=p p↑.link:=s;s↑.link:=q
s↑.link=p↑.link;p↑.link:=s q↑.link:=s;s↑link=p p↑.link:=s↑.link;s↑.link:=p P↑.link:=s;s↑.link:=q
s→link=p→dink; p→link=s p→link=s; s→link=q p→link=s→4ink; s→link=p q→link=s; s→link=p
s->link=p->link;p->link=s p->link=s;s->link=q p->link;s->link;s->link=p q->link=s;s->link=p
s->next=p->next;p->next=s; p->next=s->next;s->next=p; q->next=s;s->next=p; p->next=s;s->next=q;
s→link=p→link;p→link=s; p→link=s;s→link=q; p→link=s→link;s→link=p; q→link=s;s→link=p;
s↑.link=p↑.link;p↑.link:=s q↑.link:=s;s↑link=p p↑.link:=s↑.link;s↑.link:=p P↑.link:=s;s↑.link:=q
q:=p^. link; p^.Link:=q^.link; p^.link:=q^.1ink; q:=p^.1ink; q^.link:=p^.link; p^.1ink:=q; p^.1ink:=q; q^.link:=p^.link;
s ->link=p->link;p->link=s q->link=s;s->link=p p->link=s->link;s->link=p p->link=s;s->link=q
q:=p↑.link;p↑.link:=q↑.link; p↑.link:=q↑.link;q:=p↑.link; q↑.link:=p↑.link;q↑.1ink:=q; p↑.link:=q;q↑.link:=p↑.link;
s→link=p→link; p→link=s p→qink=s; s→link=q p→qink=s→link; s→qink=p q→link=s; s→link=p
s↑.link:=p↑.link;p↑.link:=s q↑.link:=s;s↑.link:=p p↑.link:=s↑.link;s↑.link:=p p↑.link:=s;s↑.link:=q
q:=p^.link;p^.link:=q^.link; p^.link:=q^.link;q:=p^.link; q^.link:=p^.link;q^.link:=q; p^.link:=q; q^.link:=p^.link;
s→link=p→link; p→link=s p→link=s; s→link=q p→link=s→link; s→link=p q→link=s; s→link=p