Program VR;
Var i,j,n: integer;
a:array[1..100,1..100] of byte;
Begin
writeln('Vvei n');
readln(n);
for i:=1 to n do
begin
for j:=1 to n do
begin
if i=j then a[i,j]:=i;
if j>i then a[i,j]:=i+j;
if i>j then a[i,j]:=0;
write(a[i,j]:4);
end;
writeln;
end;
End.