b) uses crt;
var a:array[1..100,1..100]of integer;
n,i,j:integer;
begin
clrscr;
write('nhap n='); readln(n);
for i:=1 to n do
for j:=1 to n do
begin
write('a[',i,',',j,']='); readln(a[i,j]);
end;
for i:=1 to n do
begin
for j:=1 to n do
write(a[i,j]:4);
writeln;
end;
readln;
end.