public void main(String args[]){
		
		//check if arguments are given
		if(args.length<2){
			System.out.println("enter both lower bound and upper bound");
		}
		//check if proper number of arguments are given
		if(args.length<1){
			System.out.println("Please enter the lower and upper bound arguments");
		}
		
		//check if the format of the argument is appropriate
		for(int i=0;i<args.length;i++){
			String input = args[i];
			for(int j=0;j<input.length();j++){
				if(Character.isLetter(input.charAt(j))){
					System.out.println("please enter numbers");
				}
			}
		}
		
		
		BigInteger lowerBound = new BigInteger(args[0]);
		BigInteger upperBound = new BigInteger(args[1]);
		
		//check if the lower and upper bounds are even
		if((lowerBound.mod(new BigInteger("2")).equals(BigInteger.ZERO))&& (upperBound.mod(new BigInteger("2")).equals(BigInteger.ZERO))){
		
		if(lowerBound.compareTo(new BigInteger("2"))==1&&lowerBound.compareTo(upperBound)==-1){
		//call the method to compute the summators
		String output = computeResult(lowerBound, upperBound);
		//print the output
		System.out.println(output);
		}
		else{
			System.out.println("Lower Bound should be greater than 2 and Lower Bound should be less than upper Bound");
		}
	}
		//if lower or upper bound are not even then print message
		else{
			System.out.println("Lower bound and upper bound should be even");
		}
	}