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Cod sursa(job #233984)
var n:byte;
i,j,ind1,ind2:integer;
f:text;
begin
assign(f,'lacate.in');reset(f);
read(f,n);
close(f);
assign(f,'lacate.out');rewrite(f);
writeln(f,n*(n-1) div 2,' ',n-1);
ind1:=1; ind2:=1;
for i:=1 to n do
if i mod 2 =1 then
begin
for j:=1 to n-1 do
begin
write(f,ind1,' ');
inc(ind1);
end;
writeln(f);
end
else
if i mod 2 =0 then
begin
for j:=1 to n-1 do
begin
write(f,ind2,' ');
inc(ind2);
end;
writeln(f);
end;
close(f);
end.