public class Day2Int {
  public static void main(String[] args){
    System.out.println("Enter a month (with 3 letters, e.g. sun, mon, tue, wed, ..., sat");
    String day = TextIO.getlnWord();
    int days;
    switch (day){
      case "mon": days=1; break;
      case "tue": days=2; break;
      case "wed": days=3; break;
      case "thu": days=4; break;
      case "fri": days=5; break;
      case "sat": days=6; break;
      case "sun": days=7; break;
      default: days=0;
    }
  System.out.println(day+" -> "+days);
  }
}