fanShop

function fanShop(input){
  let budget = Number(input.shift());
  let n = Number(input.shift());
  let price = 0;
  let sum = 0;

  for(let counter = 1; counter <= n;counter++){
      let suvenir = input.shift();
      switch(suvenir){
          case "hoodie": price = 30;break;
          case 'keychain': price = 4;break;
          case 'T-shirt': price = 20;break;
          case 'flag': price = 15;break;
          case 'sticker': price = 1;break;
      }
      sum += price;
  }

  if(budget >= sum){
    console.log(`You bought ${n} items and left with ${budget - sum} lv.`);
  }else if(budget < sum){
     console.log(`Not enough money, you need ${sum - budget} more lv.`);
  }
}

fanShop([5,
    2,
    'hoodie',
    'hoodie']);