20 lines
221 B
Markdown
20 lines
221 B
Markdown
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:
|
|
|
|
```txt
|
|
1abc2
|
|
pqr3stu8vwx
|
|
a1b2c3d4e5f
|
|
treb7uchet
|
|
```
|
|
|
|
(12, 38, 15, 77)
|
|
|
|
Output:
|
|
|
|
```txt
|
|
142
|
|
```
|