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A double sum

In the addition sums below, different letters stand for different digits. The same letter consistently stands for the same digit, each emoticon can be any digit, and leading digits cannot be zero. What number is FOURTEEN?

WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 11 August. The Editor’s decision is final. Please send entries to Enigma 1603, New ÐÓ°ÉÔ­´´, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).

Answer to 1597 Next door: The ages are 1, 8 and 9

The winner Dieter Stahel of Brugg, Switzerland