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- $ A = \\\left\\\{ {0;1;2;3;4;5} \\\right\\\}$.
- $ A = \\\left\\\{ {2;5} \\\right\\\}$.
- $ A = \\\left\\\{ {0;2;5} \\\right\\\}$.
- $ A = \\\left\\\{ {1;2;3;4} \\\right\\\}$.