program ideone;
var
a,b,c,n : integer;
begin
readln(n);
writeln;
if n mod 2 = 0 then
for a := 1 to (n div 2) do
begin
for b := 1 to (n div 2)-a do
write (' ');
for c := 1 to (a*2) do
write ('*');
writeln;
end
else
for a := 1 to (n div 2)+1 do
begin
for b := 1 to (n div 2)+(1-a) do
write (' ');
for c := 1 to (a*2)-1 do
write ('*');
writeln;
end;
end.
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