function isprime(n:integer):boolean;
var
i: integer;
begin
if (n = 2) or (n = 3) or (n = 5) or (n = 7) then begin
isprime:= true;
exit;
end
else begin
for i:= 2 to 9 do
if n mod i = 0 then begin
isprime:= false;
exit;
end;
end;
end;
var
a:array[1..10] of integer;
i,count:integer;
begin
for i:= 1 to 10 do begin
repeat
readln(a[i]);
until(a[i] > 1);
if (isprime(a[i])) then inc(Count);
end;
writeln('kol-vo prostih chisel = ',count);
end.