Matching Square Shades

Easy

An 8 × 8 chessboard is coloured the usual way: square a1 is dark, and horizontally or vertically neighbouring squares alternate in colour. A square is written as a column letter a to h followed by a row digit 1 to 8, e.g. "e4". Given two squares first and second, return True if they share a colour and False otherwise.

Example 1

first="b1", second="e4" → True

Both squares are light: they lie on the same diagonal.

Example 2

first="d4", second="d5" → False

Vertically adjacent squares always differ in colour.

Example 3

first="h8", second="a1" → True

Constraints

len(first) == len(second) == 2
The first character is a letter from a to h
The second character is a digit from 1 to 8

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Topics

Math String

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Input

first="b1", second="e4"

Expected

True

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