24 lines
456 B
Kotlin
24 lines
456 B
Kotlin
package main
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import java.io.File
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fun main() {
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var sum = 0
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File("../input.txt").forEachLine{
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var firstDigit = ""
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var lastDigit = ""
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for (c in it) {
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if (c.isDigit()) {
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lastDigit = c.toString()
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if (firstDigit == "") {
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firstDigit = c.toString()
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}
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}
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}
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sum += (firstDigit + lastDigit).toInt()
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}
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println(sum)
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}
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