text: let andUnit = {
      0: [false, false, false, true], // 0 0 0 1
  };
  
  let andNandUnit = {
      0: [false, false, false, true],
      1: [true, true, true, false]
  };
  
  let andOrNandNorUnit = {
      0: [false, false, false, true], // 0 0 0 1
      1: [false, true, true, true], // 0 1 1 1 
      2: [true, true, true, false], // 1 1 1 0
      3: [true, false, false, false], // 1 0 0 0
  };
  
  let notUnit = {
      0: [true, false],
  };
  
  
  module.exports = { andUnit, andNandUnit, andOrNandNorUnit, notUnit }