const
n=10;
m=8;
var
a:array[1..n,1..m] of integer;
i,j,s,k:integer;
begin
for i:=1 to n do
begin
for j:=1 to m do
begin
a[i,j]:=20-random(25);
write(' ',a[i,j]:3);
end;
writeln();
end;
writeln('--------') ;
s:=0;
for i:=1 to n do for j:=1 to m do if i-j=k then s:=s+a[i,j];
writeln('--------') ;
writeln(s);
end.