#include <stdio.h>

#define ARRAY_LEN 6

int array[ARRAY_LEN] = {1, 2, 3, 4, 5, 6};

int main(void) {
    int *p = &array[0]; //same as array
    int *q = &array[3]; //same as array + ARRAY_LAST_INDEX
    
    while (p <= q) {
        printf("%d", *p);
        putchar(' ');
        p++;
    }
    putchar('\n');
    return 0;
}