#include<stdio.h>
int n,m,i,j,a[30];
void afisare()
{ for(int z=1;z<=m;z++)
    printf("%d ",a[z]);
   printf("\n");
}
void comb(int k)
{
if(k==m+1)
  afisare();
else
  for(int y=a[k-1]+1;y<=n-m+k;y++)
    { a[k]=y;
      comb(k+1);
      }
    }
int main()
{freopen("combinari.in","r",stdin);
 freopen("combinari.out","w",stdout);
 scanf("%d%d",&n,&m);
 comb(1);
return 0;
}