#include <stdio.h>
#include <stdlib.h>

int main()
{
    int age;
    char gender;

    printf("How old are you? \n");
    scanf("%d", &age);

    printf("What is your gender? (m/f) \n");
    scanf("%c", &gender);

    if (age >= 18){
        printf("You may enter this website");

        if(gender == 'm'){
            printf(" dude");
        }
        if(gender == 'f'){
            printf(" lady");
        }

    }

    if(age < 18){
        printf("Nothing to see here");
    }

    return 0;
}