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#include <stdio.h>

int is_prime(int n);
int twin_primes(int number[6]);

int main()
{
    int arr[] = {3, 5, 7, 5, 11, 13};
    int arr2[] = {3, 5, 7, 5, 11, 43};
    printf("%d\n", is_prime(5));
    printf("%d\n", is_prime(6));
    printf("%d\n", twin_primes(arr));
    printf("%d\n", twin_primes(arr2));
}

int is_prime(int n)
{
    for(int i = 2;i < n;i++)
    {
        if(n % i == 0)
        {
            return 0;
        }
    }
    return 1;
}

int twin_primes(int number[6])
{
    for(int i = 0;i < 6;i++)
    {
        if(is_prime(number[i]) && is_prime(number[i + 1]) && (number[i] - number[i + 1] == -2 || number[i] - number[i + 1] == 2))
        { }else{
            return 0;
        }
        i += 1;
    }
    return 1;
}