function solve (params) {
  let message = params[0].split(' ')

  for (let i = 1; i <= params.length - 1; i++) {
    if (params[i] === 'Stop') {
      break
    }
    let tokens = params[i].split(' ')
    let command = tokens[0]
    let args = tokens[1]
    if (command === 'Delete') {
      let index = +args
      if (index >= 0 && index <= message.length - 1) {
        message.splice(index + 1, 1)
      }
    } else if (command === 'Swap') {
      let word = args
      let swapped = tokens[2]
      let index = +message.indexOf(word)
      let swappedIndex = +message.indexOf(swapped)
      if (index !== -1 && swappedIndex !== -1) {
        message.splice(index, 1, swapped)
        message.splice(swappedIndex, 1, word)
      }
    } else if (command === 'Put') {
      let putIndex = +tokens[2]
      let word = args

      if (putIndex > 0 && putIndex <= message.length + 1) {
        message.splice(putIndex - 1, 0, word)
      }
    } else if (command === 'Sort') {
      message.sort()
      message.reverse()
    } else if (command === 'Replace') {
      let word1 = args
      let word2 = tokens[2]
      let index = +message.indexOf(word2)

      if (index !== -1) {
        message.splice(index, 1, word1)
      }
    }
  }
  console.log(message.join(' '))
}