AOC1B

gistfile1.txt

fun main(args: Array<String>)
{
    // Fetch Input
    val input = input()

    // Iterate Chars
    var total = 0
    var n = 0
    do
    {
        var pos = n + input.length / 2
        if(pos > input.length - 1) pos = pos - input.length
        if(input[pos] == input[n]) total += Integer.parseInt(input[n].toString())
    }
    while(++ n < input.length)

    // Render Result
    println(total)
}