var a:array[0..18] of longint;
    n,k:longint;
procedure comb(l:longint);
var i:longint;
begin
     if l=k then begin
        for i:=1 to k do
            write(a[i],' ');
        writeln;
        end
     else begin
          for i:=a[l]+1 to n do begin
              a[l+1]:=i;
              comb(l+1);
              end;
          end;
end;
begin
assign(input,'combinar.in');
reset(input);
read(input,n,k);
close(input);
assign(output,'combinar.out');
rewrite(output);
comb(0);
close(output);
end.