class D
{
    public static void main(String[] args){
        try{
            try{
                int a=10,b=10,c;
                c=a+b;
                System.out.println(c);
                System.out.println("no error found in ap");
            }
            catch(ArithmeticException a )
            {
                System.out.println("some error found in ap function");
            }
            int a[]={10,20,23,44};
            System.out.println(a[3]);
            System.out.println("no error found in array ");
        }
        catch(ArrayIndexOutOfBoundsException a)
        {
            System.out.println("some error found in array function");
        }
    }
}