text: 'use strict';
  
  let a = 2;
  let b = 1;
  let temp = null;
  
  // write some code!
  temp = a;
  a = b;
  b = temp;
  
  
  // fill in the _ to pass the assertions
  
  const isTrue1 = a === 1;
  console.assert(isTrue1, 'Test 1');
  
  const isTrue2 = b === 2;
  console.assert(isTrue2, 'Test 2');
  
  const isTrue3 = temp === 2;
  console.assert(isTrue3, 'Test 3');