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Many thanks Puternut---if what you say is correct, that would explain it.
By the way Shoota,what I was getting at was this:-- Contestants A received 8 points from the judges due to being top in the studio,but the public gave them the fewest votes from the phone in (1 point). Total 9 points. Contestants B were second in the studio(7 points) but came next to the bottom from the phone in (2 points) Total 9 points. And so on and so on-----Every couple would receive 9 points from the combined scores---can't make it any clearer.