fun main(args: Array<String>) {
    val s = readLine()!!.split(" ")
    val ans = when {
        s.all { it[0] == 'S' } -> {
            "8/33"
        }
        s[0][0] == 'S' -> {
            "8/32"
        }
        else -> {
            "8/31"
        }
    }
    println(ans)
}