#B3994. Perimeter and Area of a Square Pattern

    ID: 11651 Type: Default 1000ms 256MiB

Perimeter and Area of a Square Pattern

Perimeter and Area of a Square Pattern

Consider a pattern formed by nn squares placed side by side. The first square has side length 11, the second square has side length 22, and so on until the nn-th square which has side length nn. All squares are arranged in a row with their bottom sides aligned. They touch each other along adjacent vertical sides, so that no two squares overlap.

Determine the perimeter and the area of the union of these squares.

The area is given by the sum of the areas of the individual squares: [ A = 1^2 + 2^2 + \cdots + n^2 = \frac{n(n+1)(2n+1)}{6}. ]

To compute the perimeter, observe that the bottom side is a single horizontal segment of length (\sum_{i=1}^{n} i = \frac{n(n+1)}{2}), the top boundary consists of the top edges of each square (which sum to the same value), and the vertical sides include the left side of the first square, the right side of the last square, and the vertical differences between consecutive squares. In fact, it can be shown that the total perimeter is: [ P = n^2 + 3n. ]

You are given the integer (n) as input. Your task is to compute (P) and (A) respectively and output them separated by a space.

inputFormat

The input consists of a single integer (n) ((1 \leq n \leq 10^5)), which indicates the number of squares.

outputFormat

Output two integers separated by a space. The first integer is the perimeter (P = n^2 + 3n) of the pattern, and the second integer is the area (A = \frac{n(n+1)(2n+1)}{6}) of the pattern.

sample

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