99. In the zoo, there are some chickens and rabbits, which have a total of 286 legs. The keeper puts 3 chickens and 2 rabbits in each cage, and in the end, there is only 1 chicken and 1 rabbit left in a cage, so the number of chickens is .
A number or a short expression. Spacing and $ signs are ignored.
Official solution
Answer: 61
Source: NuminaMath-1.5,
licensed Apache-2.0.
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