import java.io.BufferedReader import java.io.InputStream import java.io.InputStreamReader import java.io.PrintWriter import java.lang.IllegalArgumentException import java.lang.StringBuilder import java.util.* fun PrintWriter.solve(sc: FastScanner) { val n = sc.nextInt() val k = sc.nextInt() val a = Array(n) { sc.nextInt() } a.sortDescending() var max = 0 for (i in 0 until 1.shl(n - 1)) { var v = k val lst = mutableListOf(n - 1) for (j in 0 until n - 1) { if ((1.shl(j) and i) != 0) { lst.add(j) } } lst.sort() for (j in lst) { v %= a[j] } max = maxOf(max, v) } println(max) } fun main(args: Array) { val writer = PrintWriter(System.out, false) writer.solve(FastScanner(System.`in`)) writer.flush() } class FastScanner(s: InputStream) { private var st = StringTokenizer("") private val br = BufferedReader(InputStreamReader(s)) fun next(): String { while (!st.hasMoreTokens()) st = StringTokenizer(br.readLine()) return st.nextToken() } fun nextInt() = next().toInt() fun nextLong() = next().toLong() fun nextLine() = br.readLine() fun nextDouble() = next().toDouble() fun ready() = br.ready() }