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Prepaid Expenses (Tables)
 12 Months Ended
Dec. 31, 2021
Schedule of prepaid expenses

     
  12.31.2021 12.31.2020
Program  for incentive to alternative energy sources - Proinfa   35,837   22,408
Insurance premiums   17,692   14,453
Others 147 170
    53,676   37,031
Current   53,649   36,987
Noncurrent   27   44