type se=set of 1..100;
var s:se;
n,r,num:integer;
a:array[1..100] of integer;
procedure print;
var i:integer;
begin
inc(num);
for i:=1 to r do
write(a[i]:3);
writeln;
end;
procedure dep(t:integer);
var i:integer;
begin
if t>r then begin print;exit;end;
for i:=1 to n do
if i in s then
begin
a[t]:=i;
s:=s-[i];
dep(t+1);
s:=s+[i];
end;
end;
begin
readln(n,r);
s:=[1..n];
num:=0;
dep(1);
write('number=',num);
end.
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