var i,s:integer;BEGIN s := 0; for i := 10 to 99 do if i mod 13 = 0 then s := s + (sqr(i div 10)+sqr(i mod 10)); write(s)END.
var
i,s:integer;
BEGIN
s := 0;
for i := 10 to 99 do
if i mod 13 = 0 then
s := s + (sqr(i div 10)+sqr(i mod 10));
write(s)
END.