#include <stdio.h>
int main (void) {
    const int secret_code = 13;
    int code_entered;
    do
    {
        printf("To enter the math club,\n");
        printf("please enter the secret code number:");
        scanf("&d",&code_entered);
        break;
    }while (code_entered!=secret_code);
    printf("yes right");

    return 0 ;

}