whatever 2 in C

#include <stdio.h>

int main(void){
    int a, b, tmp, sum, count=0;
    scanf("%d %d", &a, &b);

    for(int i=a; i<=b; i++){
        tmp = i;
        sum = 0;
        while(tmp){
            if((tmp%10)%2==0 && (tmp%10)%3!=0)
                sum += tmp%10;
            tmp /= 10;
        }
        if(sum>0 && sum%7 == 0){
            printf("%d\n", i);
            count++;
        }
    }
    printf("Vkupno: %d", count);
}