var a:array[0..18] of longint;
n,k:longint;
procedure com(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;
com(l+1);
end;
end;
end;
begin
assign(input,'combinari.in');
reset(input);
read(input,n,k);
close(input);
assign(output,'combinari.out');
rewrite(output);
com(0);
close(output);
end.