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#include <bits/stdc++.h>
using namespace std;
long long n,i,x;
//chuongtrinhcon
bool ktnt(long long x)
{
if (x<2) return false;
for (int i=2; i*i<=x; i++)
if (x%i==0) return(false);
return true;
}
//chuongtrinhchinh
int main()
{
freopen("dl.dat","r",stdin);
freopen("kq.dat","w",stdout);
cin>>n;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
if (ktnt(x)) dem++;
}
cout<<dem;
return 0;
}
uses crt;
const fi='songuyen.inp';
fo='songuyen2.out';
var a:array[1..100]of integer;
i,n,t1:integer;
f1,f2:text;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do readln(f1,a[i]);
t1:=0;
for i:=1 to n do if a[i] mod 2<>0 then t1:=t1+a[i];
writeln(t1);
writeln(f2,t1);
for i:=1 to n do
if a[i] mod 2<>0 then write(a[i]:4);
close(f1);
close(f2);
readln;
end.
const fi='dl.dat';
fo='kq.dat';
var f1,f2:text;
a:array[1..100]of integer;
i,n,dem1,dem2,t1,t2:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do read(f1,a[i]);
dem1:=0;
dem2:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then inc(dem1)
else inc(dem2);
end;
t1:=0;
t2:=0;
for i:=1 to n do
begin
if (a[i] mod 6=0) then t1:=t1+a[i];
if (a[i] mod 9=0) and (a[i] mod 2<>0) then t2:=t2+a[i];
end;
writeln(f2,dem1,' ',dem2);
writeln(f2,t1);
writeln(f2,t2);
close(f1);
close(f2);
end.
const fi='dl.dat';
fo='kq.dat';
var f1,f2:text;
a:array[1..100]of integer;
i,n,dem1,dem2,t1,t2:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do read(f1,a[i]);
dem1:=0;
dem2:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then inc(dem1)
else inc(dem2);
end;
t1:=0;
t2:=0;
for i:=1 to n do
begin
if (a[i] mod 6=0) then t1:=t1+a[i];
if (a[i] mod 9=0) and (a[i] mod 2<>0) then t2:=t2+a[i]
end
writeln(f2,dem1,' ',dem2)
writeln(f2,t1)
writeln(f2,t2)
close(f1)
close(f2)
;-;
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,j;
bool kt;
int main()
{
freopen("nguyento.inp","r",stdin);
freopen("nguyento.out","w",stdout);
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++)
if (a[i]>1)
{
kt=true;
for (j=2; j*j<=a[i]; j++)
if (a[i]%j==0) kt=false;
if (kt==true) cout<<a[i]<<" ";
}
return 0;
}
#include <bits/stdc++.h>
using namespace std;
string st;
int d,i,dem;
int main()
{
freopen("xau.inp","r",stdin);
freopen("xau.out","w",stdout);
cin>>st;
d=st.length();
dem=0;
for (i=0; i<=d-1; i++)
if (st[i]=='a') dem++;
cout<<dem;
return 0;
}
const fi='input.txt';
fo='output.txt';
var f1,f2:text;
a:array[1..100]of integer;
i,n,t:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eof(f1) do
begin
inc(n);
read(f1,a[n]);
end;
t:=0;
for i:=1 to n do t:=t+a[i];
write(f2,t);
close(f1);
close(f2);
end.
const fi='songuyen.inp';
fo='tong.out';
var f1,f2:text;
a:array[1..100]of integer;
n,i,dem:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eof(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
dem:=0;
for i:=1 to n do
if a[i] mod 2=0 then inc(dem);
writeln(f2,dem);
close(f1);
close(f2);
end.
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,dem;
int main()
{
freopen("dl.inp","r",stdin);
freopen("dl.dat","w",stdout);
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
dem=0;
for (i=1; i<=n; i++)
if (a[i]==10) dem++;
cout<<dem;
return 0;
}