AT_abc387_b [ABC387B] 9x9 Sum

Description

> Among the $ 81 $ integers that appear in the $ 9 $ -by- $ 9 $ multiplication table, find the sum of those that are not $ X $ . There is a grid of size $ 9 $ by $ 9 $ . Each cell of the grid contains an integer: the cell at the $ i $ -th row from the top and the $ j $ -th column from the left contains $ i \times j $ . You are given an integer $ X $ . Among the $ 81 $ integers written in this grid, find the sum of those that are not $ X $ . If the same value appears in multiple cells, add it for each cell.

Input Format

The input is given from Standard Input in the following format: > $ X $

Output Format

Print the sum of the integers that are not $ X $ among the $ 81 $ integers written in the grid.

Explanation/Hint

### Sample Explanation 1 The only cell with $ 1 $ in the grid is the cell at the 1st row from the top and 1st column from the left. Summing all integers that are not $ 1 $ yields $ 2024 $ . ### Sample Explanation 2 There is no cell containing $ 11 $ in the grid. Thus, the answer is $ 2025 $ , the sum of all $ 81 $ integers. ### Constraints - $ X $ is an integer between $ 1 $ and $ 81 $ , inclusive.