object Main {
  def convert(line: String): String = {
    if (line.matches(".*(the|that|this).*")) {
      line
    }
    else {
      convert(line.map {
        case ch if 'b' to 'z' contains ch => (ch - 1).toChar
        case ch if ch == 'a' => 'z'
        case ch => ch
      })
    }
  }

  def main(args: Array[String]): Unit = {
    val sc = new java.util.Scanner(System.in)
    while (sc.hasNextLine) {
      println(convert(sc.nextLine()))
    }
  }
}