text: function smallShop([arg1, arg2, arg3]) {
      let product = arg1;
      let town = arg2;
      let quantity = Number(arg3);
      if (town == "Sofia") {
          if (product == "coffee") {
              console.log(0.5 * quantity);
          } else if (product == "water") {
              console.log(0.8 * quantity);
          } else if (product == "beer") {
              console.log(1.2 * quantity);
          } else if (product == "sweets") {
              console.log(1.45 * quantity);
          } else if (product == "peanuts") {
              console.log(1.6 * quantity);
          }
      } else if (town == "Plovdiv") {
          if (product == "coffee") {
              console.log(0.4 * quantity);
          } else if (product == "water") {
              console.log(0.7 * quantity);
          } else if (product == "beer") {
              console.log(1.15 * quantity);
          } else if (product == "sweets") {
              console.log(1.3 * quantity);
          } else if (product == "peanuts") {
              console.log(1.5 * quantity);
          }
      } else if (town == "Varna") {
          if (product == "coffee") {
              console.log(0.45 * quantity);
          } else if (product == "water") {
              console.log(0.7 * quantity);
          } else if (product == "beer") {
              console.log(1.1 * quantity);
          } else if (product == "sweets") {
              console.log(1.35 * quantity);
          } else if (product == "peanuts") {
              console.log(1.55 * quantity);
          }
      }
  }
  smallShop(["sweets", "Sofia", "2.23"]);
  smallShop(["coffee", "Varna", "2"]);