import static java.lang.System.*;

class Prime {

public void checkPrime(int... p){

    boolean prime;


    for(int i=0;i<p.length;i++){
        prime = true;
        int n = (int)java.lang.Math.sqrt(p[i]);


        if(p[i]>1)
        for(int j=2;j<n+1;j++){

            if(p[i]%j==0){

                prime = false;
                break;
            }

        }
        else prime = false;

        if(prime) {
                out.print(p[i]);
                out.print(" ");
            }
    }

    out.println();


}

}