import static java.lang.System.*;
class Prime{
public static void checkPrime(int ... num){
int l = num.length;
for(int i:num){
if(prime(i))
System.out.print(i+" ");
}
System.out.println();
}
public static boolean prime(int num){
if(num==1)
return false;
if(num==2||num==3)
return true;
if(num%2==0)
return false;
for(int i=3;i<=Math.sqrt(num);i+=2){
if(num%i==0)
return false;
}
return true;
}
}