uses
crt;
var
a:array[1..100,1..100] of integer;
i,k,n:integer;
begin
writeln('wvedite razmernost matrici');
readln(n);
writeln('matrica por9dka 2n');
for i:= 1 to 2*n do
for k:= 1 to 2*n do
a[i,k]:=random(10)-2;
for i:= 1 to 2*n do
begin
for k:= 1 to 2*n do
write(a[i,k],' ');
writeln;
end;
readkey
end.