import fs from 'fs'

const checkDup = arr => arr.filter((data, i, self) => self.includes(data))

const Main = (input) => {
  const arr = []
  input.split('').map(data => arr.push(data))


  while(i + n <= input.length){
    arr.push(input.substring(i, i + n))
    i++
  }
  // console.log(input.substring(0, 2))
  // console.log(  input.substring(1, 3))
  // console.log(  input.substring(2, 4))


  console.log(arr)
}

Main(fs.readFileSync("/dev/stdin", "utf8"));
