#include <stdio.h>
#include <stdlib.h>

int main()
{

    char test_arr[4] = { 10, 20, 30, 40 };

    char *p = test_arr;

    char a , b, c, d;

    a = *p;
    b = *p + 1;
    c = *p + 2;
    d = *p + 3;

    printf("a: %d b: %d c: %d d: %d\n\n", a, b, c, d );

    a = *p;
    b = *(p + 1);
    c = *(p + 2);
    d = *(p + 3);

    printf("a: %d b: %d c: %d d: %d\n\n", a, b, c, d );

    return 0;
}

/*

output:

a: 10 b: 11 c: 12 d: 13

a: 10 b: 20 c: 30 d: 40

*/