#include <stdio.h>

#define THOUSAND 1000
#define TWO 2

int main(void)
{
    int i = 0;
    int j = 0;
    int isPrime = 1;
    int numOfPrimes = 0;
    //defining the vars
    for (i=TWO ; i<=THOUSAND ; i++)
    {
        //inner loop
        isPrime = 1;
        //flag
        for (j = TWO;j < i && isPrime == 1;j++)
        {
            if (i % j == 0)
            {
                 isPrime= 0;
            }
            //if i%j==0 , number isn't prime
        }
        if (1 == isPrime)
        {
            printf("Prime number: %d\n", i);
            numOfPrimes++;
        }
        //if i%j!=0, number is prime and isPrime will stay TRUE. printing the prime number.
    }
    printf("Num of primes: %d",numOfPrimes);
    //printing number of prime numbers between 1-1000
    return 0;
}