Competitions

# Quick start C

# Sum a*a + ... + b * b

Given two positive integers **a** and **b**, find the sum **a** * **a** + ... + **b** * **b**.

#### Input

Two positive integers **a** and **b** (**1** ≤ **a** ≤ **b** ≤ **1000**).

#### Output

Print the value of the given sum.

Input example #1

3 7

Output example #1

135