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typedef struct fcs_rand_struct fcs_rand_t;
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extern fcs_rand_t * freecell_solver_rand_alloc(unsigned int seed);
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extern void freecell_solver_rand_free(fcs_rand_t * rand);
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extern int freecell_solver_rand_get_random_number(fcs_rand_t * rand);
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extern void freecell_solver_rand_srand(fcs_rand_t * rand, int seed);