You are given an integer N as an argument. Return a two dimensional array containing arrays of integers that make up a multiplication table from 1x1 to NxN.

The top left element must be zero.

Requirements

• Must return a two dimensional array containing arrays of integers

Example #1

solve(4)
>  [[1, 2, 3, 4],
    [2, 4, 6, 8],
    [3, 6, 9, 12],
    [4, 8, 12, 16]]