&one_zone

      !show_net_reactions_info = .true.
      !show_Qs = .true.
      
      mesa_dir = '/Users/mesa/work/mesa-r24.08.1'   	

      net_name = 'he4_and_c12.net' 
      
      trace = .true.
      !burn_dbg = .true.
   	stptry = 0
      use_pivoting = .true.
      !use_pivoting = .false.

      ! cosntant density
      burn_at_constant_density = .true.
      
      ! initial conditions
      burn_logT = 9d0

      burn_logRho = 5d0
      
      burn_Cv =    0
      burn_d_Cv_dlnT =    0
      burn_eta =    0
      burn_deta_dlnT =    0

      num_isos_for_Xinit = 1
      names_of_isos_for_Xinit( 1) = "he4"
      values_for_Xinit( 1) = 1d0


      burn_tend = 1d0



      eps = 1d-10
      odescal = 1d-12
   	
   	max_step_size = 0
      max_steps     = 10000000        

   	
   	data_heading_line = ''
      
      min_for_show_peak_abundances = 0 ! 1d-6 ! output peak value if it is > this
      max_num_for_show_peak_abundances = 21
      show_peak_x_and_time = .false. 
         ! if false, then shows final abundances instead of peak

      data_filename = 'one_zone_burn.data'
      !data_output_min_t = 1d-6
      
      save_final_abundances = .true.
      final_abundances_filename = 'abundances.data'
      
      !uniform_Xinit = .true. ! for debugging

      num_names_of_isos_to_show = -1

      decsol_switch = 5000
         ! if current number of species <= switch,
            ! then use small_mtx_decsol,
            ! else use large_mtx_decsol.
      small_mtx_decsol = 'lapack'
      large_mtx_decsol = 'bcyclic_dble'
      
      cache_suffix = '' ! use this only for reactions from rate_tables
      
      ! reaction rate factors
         num_special_rate_factors = 0 ! must be <= max_num_special_rate_factors
         reaction_for_special_factor(:) = ''
         special_rate_factor(:) = 1
         ! e.g.
            !num_special_rate_factors = 1
            !reaction_for_special_factor(:) = 'r_c12_ag_o16'
            !special_rate_factor(1) = 1.1

      
      quiet = .false.
      show_ye_stuff = .true.

/