printf("Please register below: \n");
printf("First Name:\n");
scanf("%s", &first_name);
printf("Last Name:\n");
scanf(" %s", &last_name);
printf("Username:\n");
scanf(" %s", &chosen_username);
printf("E-mail address:\n");
scanf(" %s", &main_mail_address);
printf("Password:\n");
scanf(" %s", &main_password);


printf("You are registering in our site with these following informations:\n");
printf("First Name: %s\n", &first_name);
printf("Last Name %s\n", &last_name);
printf("Username: %s\n", &chosen_username);
printf("E-mail address: %s\n", &main_mail_address);
printf("Password: %s\n", &main_password);