Friday, March 4, 2011

Mu matemaatika tuli 3 http://t2.gstatic.com/images?q=tbn:ANd9GcTTG0Bqf-F35REGP8LzWkPO8Slg1t51TrFAhsCNAjGb1uRwVa_Fag&t=1

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