program royfloyd;
const max=100;
var i,j,k,n:integer;
    a:array[1..max,1..max] of integer;
    fin,fout:text;

begin
assign(fin,'royfloyd.in');
reset(fin);
assign(fout,'royfloyd.out');
rewrite(fout);

readln(fin,n);
for i:=1 to n do
begin
 for j:=1 to n do
   read(fin,a[i,j]);
  readln(fin);
end;

for i:=1 to n do
 for j:=1 to n do
  for k:=i to j do
   if ((a[i,k]*a[k,j]>0) AND (a[i,j]<(a[i,k]+a[k,j]))) then
      a[i,j]:=a[i,k]+a[k,j];

for i:=1 to n do
begin
 for j:=1 to n do
   write(fout,a[i,j],' ');
  writeln(fout);
end;

close(fin); close(fout);
end.