import scala.annotation.tailrec

object Main {
  def main(args: Array[String]): Unit = {
    val keyword = Set("the", "this", "that")

    def decrementString(line: String): String = line.map {
      case ch if 'b' to 'z' contains ch => (ch - 1).toChar
      case ch if ch == 'a' => 'z'
      case ch => ch
    }

    @tailrec
    def go(line: String): String = {
      if (line.split(" ").exists(keyword.contains)) {
        line
      } else {
        go(decrementString(line))
      }
    }

    val sc = new java.util.Scanner(System.in)
    while (sc.hasNextLine) {
      println(go(sc.nextLine))
    }
  }
}