#include <stdio.h>
int main() {
int a,c;
for(int i=2;i<a;i++){
if(a%i==0){
c++;
}
}
if(c==0){
}
else{
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbigpIHsKICAgIGludCBhLGM7CiAgICBzY2FuZigiJWQiLCZhKTsKICAgIGZvcihpbnQgaT0yO2k8YTtpKyspewogICAgCWlmKGElaT09MCl7CiAgICAJCWMrKzsKICAgIAl9CiAgICB9CiAgICBpZihjPT0wKXsKICAgIAlwcmludGYoImtpIik7CiAgICB9CiAgICBlbHNlewogICAgcHJpbnRmKCJiYWtpYmFraSIpOwogICAgfQogICAgcmV0dXJuIDA7Cn0=