using System;

public class Program

{   static int n, m;

    static int[] Rcomb;

    static void Print()

    { Console.Write("[");

      for (int i = 1; i < m; i++)

      { Console.Write(RComb[i] + ","); }

      Console.WriteLine(RComb[m] + "]");

    }

    static bool nextRComb()

    { int i, j, k;

      if(RComb[m] < n) { RComb[m]++; return true; }

      k = 0; j = m;

      while(j > 0 && RComb[m - k] = = n) { k++; j--; }

      if (j == 0) return false;

      RComb[j]++;

      for(i = j + 1; i <=m ; i++) Rcomb[i] = Rcomb[j];

      return true;

    }

    static void Main(string[] args)

    { n = int.Parse(Console.ReadLine());

      m = int.Parse(Console.ReadLine());

      Array.Resize(ref Rcomb, m + 1);

      for(int i = 1; i <= m; i++) Rcomb[i] = 1;

      Print();

      while ( nextRcomb()) Print();

    }

  }

​