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?ëé?}A¦Ävcf¨þeïcJé8³LAlso, a Oracle that generates random #s (signed w/ combination of the random number and some nonce included in the Smart Contract) would work.
https://whatsonchain.com/tx/ceadb44b45a8a96037addc419f4d5870fa3418348c3208ead06f39e05175f8cf