import java.util.Scanner;
public class Assign2 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String x = sc.next();
int res1 = AnaLR(x);
int res2 = AnaRL(x);
int sum = res1+res2;
System.out.println(sum);
boolean bool = Div10(sum);
if(bool)
System.out.println("Credit Card  " + x + "  " + " is valid ");
else
System.out.println("Credit Card  " + x + "  " + " is  not valid ");
}

public static int AnaRL(String x){

    for( x = 1; x <= 9; x++) {
        if(x % 2 != 0)
            res2 = res2 + x;
        return res2;
    }


}
}