using System;

public class Program

{

    public static void Main()

    {

        int m=0, f=0;

        int[] a= {2,4,5,7,9,10,64};

        for (int i=0;i<7;i++)

        {

            if (a[i]>m)

                m = a[i];

            else

            {

                i=7;

                f=1;

            }

        }

        if (f==1)

            Console.WriteLine("the sidra is not ola");

        if (f==0)

            Console.WriteLine("the sidra is ola");

    }

}