advent-of-code-2023/day-1/part-1/readme.md

1. Combine the first and last digit on each line to create a single two-digit number.
2. Get the sum of all of those

Input:

1abc2
pqr3stu8vwx
a1b2c3d4e5f
treb7uchet

(12, 38, 15, 77)

Output:

142