#include <stdio.h>
#define nmax 20
using namespace std;
FILE *fin=fopen("combinari.in","r");
FILE *fout=fopen("combinari.out","w");
int n,m,x[nmax];

	void write(void)
	{for(register int i=1;i<=m;i++) fprintf(fout,"%d ",x[i]);
	 fprintf(fout,"\n");
	}
	
	void gen(int k)
	{if(k>m) write();
	 else for(register int i=x[k-1]+1;i<=n-m+k;i++)
		 {x[k]=i; gen(k+1);		}
	}
	
int main(void)
{fscanf(fin,"%d%d",&n,&m);
 gen(1);
 fclose(fin); fclose(fout);
 return 0;
}