fun main() {
    val count = IntArray(10){0}
    val str = readLine()!!.trim()
    for (c in str ){
        if (c.isDigit()) {
            count[c - '0']++
        }
    }
    var from = -1
    var to = -1
    var check = 41038
    for (i in 0 until 10) {
        if (check % 3 != count[i] % 3) {
            if ((check + 1) % 3 == count[i] % 3) {
                to = i
            }else {
                from = i
            }
        }
        check /= 3
    }
    println("$to $from")
}