uses crt;
var y,x:integer;
begin
clrscr;
y:=0;
x:=3;
while x<=99 do
begin
y:=y+x;
x:=x+3;
end;
write('y=',y);
readln
end.
uses crt;
var y,x:integer;
begin
clrscr;
y:=0;
x:=3;
while x<=99 do
begin
y:=y+x;
x:=x+3;
end;
write('y=',y);
readln
end.