//import {args} from 'deno'

const args = Deno.args
if (args.length !== 1) throw new Error()
let n = parseInt(args[0])

while (n > 1) {
  console.log(n)
  if (n % 2 === 0) {
    n = n / 2
  } else {
    n = 3 * n + 1
  }
}

console.log(n)