20 lines
221 B
Markdown
20 lines
221 B
Markdown
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1. Combine the first and last digit on each line to create a single two-digit number.
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2. Get the sum of all of those
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Input:
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```txt
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1abc2
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pqr3stu8vwx
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a1b2c3d4e5f
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treb7uchet
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```
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(12, 38, 15, 77)
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Output:
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```txt
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142
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```
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