Uses
CRT;
const
n=3;
var
i,j:byte;
a:array [1..n,1..n] of integer;
s,s2:real;
begin
s:=0;
s2:=0;
randomize;
writeln ('ishodnui massiv:');
for i:=1 to n do
begin
for j:=1 to n do
begin
a[i,j]:=random(10)-3;
write(a[i,j]:4);
if (j<=i) and (j<=n-i+1) then
s:=s+a[i,j];
if (j>=i) and (j>=n-i+1) then
s2:=s2+a[i,j];
end;
writeln
end;
writeln;
write('S:=',s);
writeln;
write('S2:=',s2);
readln
end.