function easterShoping (input) {
  let shopList = input.shift().split(' ')
  let commandsNumber = +input.shift()

  for (let element of input) {
    let [command, shop, number] = element.split(' ')

    if (command === 'Include') {
      shopList.push(shop)
    } else if (command === 'Visit' && input.length >= number) {
      if (shop === 'first') {
        shopList.splice(0, number)
      } else if (shop === 'last') {
        shopList.length -= +number
      }
    } else if (command === 'Prefer') {
      let shopIndex1 = +shop
      let shopIndex2 = +number
      let firstToSwap = shopList[shopIndex1]
      let secondToSwap = shopList[shopIndex2]

      if (
        shopIndex1 >= 0 &&
        shopIndex1 < shopList.length &&
        shopIndex2 >= 0 &&
        shopIndex2 < shopList.length
      ) {
        shopList.splice(shopIndex1, 1, secondToSwap)
        shopList.splice(shopIndex2, 1, firstToSwap)
      }
    } else if (command === 'Place') {
      let shopIndex = +number
      if (shopIndex >= 0 && shopIndex < shopList.length) {
        shopList.splice(shopIndex + 1, 0, shop)
      }
    }
  }

  console.log(`Shops left:`)
  console.log(shopList.join(' '))
}
easterShoping([
  'Boutique Flowers CandyStore ThriftShop Versace Groceries ToyStore PeakStore',
  '6',
  'Visit first 9',
  'Visit last 4',
  'Visit last 1',
  'Prefer 3 8',
  'Place Store 7'
])