import java.io.PrintStream;

public class Test2BShorter
{
   public static void main(String[] args)
   {
      PrintStream out = System.out;
      
      final String WORD = args[0];
      
      /*
         You only really need the innermost loop of InversionCount.
      */
      boolean isAlphabetical = true;
      for (int i = 0; i < WORD.length() - 1; i++)
      {
         char ci = WORD.charAt(i);
         char cj = WORD.charAt(i + 1);
         if (ci > cj)
         {
            isAlphabetical = false;
         }
      }
      out.println(isAlphabetical);
   }
}