using System;
using System.Collections.Generic;
using System.Linq;

class Program {
    static string ReadLine() { return Console.ReadLine(); }
    static int ReadInt() { return int.Parse(ReadLine()); }
    static int[] ReadInts() { return ReadLine().Split().Select(int.Parse).ToArray(); }
    static string[] ReadStrings() { return ReadLine().Split(); }

    static void Test() {
        // m^n が 65535 を超える
        for (int i = 2; ; i++) { // i 種類の文字を使って p 文字の文字列を作る
            int p = 1;
            while (Math.Pow(i, p+1) <= 63353) {
                p++;
            }

            if (i <= p) {
                Console.WriteLine("{0}^{1} = {2}", i, p, Math.Pow(i, p));
            }

            if (p == 1) break;
        }
    }

    static int RunLength(int[] xs) {
        int len = 0;
        int x = xs[0];
        int n = 1;
        for (int i = 1; i < xs.Length; i++) {
            if (x == xs[i]) {
                n++;
            }
            else {
                len += 1 + n.ToString().Length;
                n = 1;
            }
        }
        len += 1 + n.ToString().Length;
        return len;
    }

    static int Calc_1(int p, int[] xs, int m) {
        if (p == xs.Length) {
            if (xs.Length > RunLength(xs)) return 1;
            return 0;
        }

        int ret = 0;
        for (int i = 0; i < m; i++) {
            xs[p] = i;
            ret += Calc_1(p+1, xs, m);
        }
        return ret;
    }

    static int Calc(int m, int n) {
        var xs = new int[n];
        return Calc_1(0, xs, m);
    }

    static void Main() {
        // Test();

        var mn = ReadLine().Split(new[] { ',' }).Select(int.Parse).ToArray();
        int m = mn[0], n = mn[1];

        int ans = Calc(m, n);
        Console.WriteLine(ans);
    }
}

/*

Input   Output
2,5     10
3,10    2505
4,7     616
2,16    19898
8,5     232

*/