L1-008 sum integer segments

The original title is

Given two integers A and B, Output from A To B All the integers of and the sum of these numbers .

Input format ：

Enter... On one line 2 It's an integer A and B, among −100≤A≤B≤100, Separated by spaces .

Output format ：

First, output sequentially from A To B All integers of , Every time 5 A line of numbers , Each number accounts for 5 Character width , Align right . Finally, in a line, press Sum = X Output the sum of all the numbers X.

sample input ：

-3 8

sample output ：

   -3   -2   -1    0    1
    2    3    4    5    6
    7    8
Sum = 30

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int A,B,sum = 0,k = 0;
	cin >> A >> B;
	for(int i = A; i <= B; i++)
	{
		k++;
		printf("%5d",i);
		sum += i;
		if(k % 5 == 0)
			printf("\n");
	}
//	printf("\n");    Notice the line breaks here 
	if(k % 5 != 0)
		printf("\n");
	cout << "Sum = " <<  sum;
	return 0;
}