#include <stdio.h>
int main() {
    int arr[3] = {100, 200, 300};
    int *ptr = arr;
    int *ptr1 = &arr[2]; // 1008

    printf("%d\n", *ptr);//100
    ptr++;  
    printf("%d\n", *ptr);//200
    
    ptr--;  
    printf("%d\n", *ptr);//100
    int diff = ptr1-ptr;//2
    int diff1 = ptr1+ptr;
    
    printf("\n%d",diff);
    printf("\n%d",*ptr);
    printf("\n%d",*ptr1);
    printf("\n%d",diff1);

    return 0;
}