import java.io.IOException; import java.io.InputStream; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.PriorityQueue; import java.util.Scanner; public class Main { public static void main(String[] args) { new Main().run(); } void run() { Scanner sc = new Scanner(); int N = sc.nextInt(); if (!(1 <= N && N <= 390)) throw new AssertionError(); int M = sc.nextInt(); if (!(1 <= M && M <= 20)) throw new AssertionError(); int K = sc.nextInt(); if (!(1 <= K && K <= 10000)) { throw new AssertionError(); } ++N; int[] a = new int[N]; for (int i = 0; i < N; ++i) { a[i] = sc.nextInt(); } long[][] f = new long[N][M + 1]; f[0][0] = K; long ans = 0; for (int cur = 0; cur < N; ++cur) { for (int j = 0; j <= M; ++j) { if (cur > 0) { f[cur][j] = Math.max(f[cur][j], f[cur - 1][j]); } ans = Math.max(ans, f[cur][j]); if (!(j + 1 <= M)) continue; for (int dst = cur + 1; dst < N; ++dst) { f[dst][j + 1] = Math.max(f[dst][j + 1], f[cur][j] / a[cur] * a[dst] + f[cur][j] % a[cur]); } } } System.out.println(ans); } class Scanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; } else { ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1; } private boolean isPrintableChar(int c) { return 33 <= c && c <= 126; } private void skipUnprintable() { while (hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; } public boolean hasNext() { skipUnprintable(); return hasNextByte(); } public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while (isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while (true) { if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; } else if (b == -1 || !isPrintableChar(b)) { return minus ? -n : n; } else { throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { return (int) nextLong(); } } static void tr(Object... objects) { System.out.println(Arrays.deepToString(objects)); } }