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5 Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2020
Cash and cash equivalents [abstract]  
Schedule of cash and cash equivalents
  12.31.2020 12.31.2019
Cash and bank accounts 228,711  263,188
Financial investments with immediate liquidity  2,994,057 2,678,539
   3,222,768 2,941,727