ارسال شماره 952

fun main(){
    val s1 = readLine()!!
    val s2 = readLine()!!
    var r1 = mutableListOf<Char>()
    var r2 = mutableListOf<Char>()

    for (i in s1)
        if(i != 'x')
            r1.add(i)
    for (i in s2)
        if(i != 'x')
            r2.add(i)
    var int1 = r1.joinToString("").toInt()
    var int = r2.joinToString("").toInt()

    println(int + int1)
}