#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
int divizor = 2;
int este_prim = 1;
while (divizor < n) {
if (divizor % 10 == 0) {
este_prim = 0;
}
++divizor;
}
if (n == 0) {
este_prim = 0;
}
if (este_prim = 0) {
cout << "nu este prim";
}
if (este_prim = 1) {
cout << "este prim";
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwogCmludCBtYWluKCkgewoJaW50IG47CgljaW4gPj4gbjsKCWludCBkaXZpem9yID0gMjsKCWludCBlc3RlX3ByaW0gPSAxOwoJd2hpbGUgKGRpdml6b3IgPCBuKSB7CgkJaWYgKGRpdml6b3IgJSAxMCA9PSAwKSB7CgkJCWVzdGVfcHJpbSA9IDA7CgkJfQoJCSsrZGl2aXpvcjsKCX0KCWlmIChuID09IDApIHsKCQllc3RlX3ByaW0gPSAwOwoJfQoJaWYgKGVzdGVfcHJpbSA9IDApIHsKCQljb3V0IDw8ICJudSBlc3RlIHByaW0iOwoJfQoJCWlmIChlc3RlX3ByaW0gPSAxKSB7CgkJY291dCA8PCAiZXN0ZSBwcmltIjsKCX0KIAoJcmV0dXJuIDA7Cn0=