#include <stdio.h>
int fib()
{
    int a=0,b=1, arr;
    arr = a;
    arr = b;
    printf("%d, %d,",a, b );
    int c=0;
    for(int i=2; i<=20; i++)
    {
        c=a+b;
        arr = c;
        printf("%d,",c);
        a=b;
        b=c;
    }
    checkPrime(arr);
}
void checkPrime(int a)
{
    int i, count;
    for(i=0; i<sizeof(a); i++)
    {
        count=0;
        for(int j=2; j<=a/2 ; j++)
        {
            if(a%2==0)
                count++;
        }
        if(count>1)
           printf("%d is a Prime", a); 
    }
    
}
int main() 
{
    fib();
}