class Monotonic
{
    public static boolean monotonic(int[] a)
    {     int n = a.length, i;
          for (i = 0 ; i < n - 1 ; i++)
                if (a[i+1] < a[i]) break;
          if (i == n - 1) return(true);   // increasing
          for (i = 0 ; i < n - 1 ; i++)
                if (a[i+1] > a[i]) return(false);
          return(true);                   // decreasing
    }

    public static void main(String[] args)
    {     int[] a = {1, 2, 3, 4, 4, 5, 10};
          int[] b = {19, 12, 8, 4, 4, 0, -10};
          int[] c = {1, 2, 3, 4, 3, 5, 10};
          if (monotonic(a))
              System.out.println("a monotonic.");
          if (monotonic(b))
              System.out.println("b monotonic.");
          if (monotonic(c))
              System.out.println("c monotonic.");
    }
}