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Cod sursa(job #41516)
var f,g:text;
n,i,j:integer;
begin
assign(f,'oras.in');
reset(f);
read(f,n);
assign(g,'oras.out');
rewrite(g);
if n mod 2=0 then write(g,-1)
else begin
for i:=1 to n do begin
for j:=1 to n do begin
if i<j then write(g,(i+j)mod 2)
else if i>j then write(g,(i+j+1)mod 2)
else write(g,0);
end;
writeln(g);
end;
end;
close(g);
end.