Calculate natural numbers that are divide by 7 & 8 using Java

//NATURALS NUMBERS THAT ARE DIVISIBLE BY 7 & 8

import java.io.*;

class ssvnat
{
    public static void main(String arg[]) throws IOException
    {
        int i,a,b,s=0,start,end;
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.println("\n\t\t*** NATURALS NUMBERS THAT ARE DIVISIBLE BY 7 & 8 *** \n");
        System.out.print("Enter the number will be started : ");
        start=Integer.parseInt(br.readLine());
        System.out.print("Enter the number to be end       : ");
        end=Integer.parseInt(br.readLine());
        for(i=start;i<=end;i++)
        {
            a=i%7;
            b=i%8;
            if((a==0)&&(b==0))
            {
                System.out.print("\t" + i);
                s=s+i;
            }
        }
        System.out.print("\n\nThe Sum of Numbers that are divisible by 7 and 8 :  " + s);
       System.out.println();
    }
}