// Given two promises promise1 and promise2, return a new promise. 
// promise1 and promise2 will both resolve with a number. 
// The returned promise should resolve with the sum of the two numbers.

/**
 * @param {Promise} promise1
 * @param {Promise} promise2
 * @return {Promise}
 */
var addTwoPromises = async function(promise1, promise2) {
    const [value1, value2] = await Promise.all([promise1, promise2]);
  
    return value1 + value2;
  };
  
  /**
   * addTwoPromises(Promise.resolve(2), Promise.resolve(2))
   *   .then(console.log); // 4
   */