public class DoWhileDemo {
        public static void main(String[] args) {
                int sum,i;
                i = 1;
                sum=0;
                do{
                         sum+=i;
                         i+=2;   
                 } while (i<=2000);
                 System.out.println("The sum from 1 to 2000 odds is :  "+sum);
         }
}