You are given coordinates, a string that represents the coordinates of a square of the chessboard. Below is a chessboard for your reference. Return true if the square is white, and false if the square is black. The coordinate will always represent a valid chessboard square. The coordinate will always have the letter first, and the number second. Example 1: Input: coordinates = "a1" Output: false Explanation: From the chessboard above, the square with coordinates "a1" is black, so return false. Example 2: Input: coordinates = "h3" Output: true Explanation: From the chessboard above, the square with coordinates "h3" is white, so return true. Example 3: Input: coordinates = "c7" Output: false Constraints: coordinates.length == 2 'a' <= coordinates[0] <= 'h' '1' <= coordinates[1] <= '8'