#include <stdio.h>
#include <inttypes.h>

union intbytes {
    uint32_t number;
    uint8_t bytes[4];
} d;

int main()
{
    d.number = 0x12345678;
    printf ("Number %x",d.number);
    printf(" in memory is: %x %x %x %x\n", d.bytes[0],
    d.bytes[1], d.bytes[2], d.bytes[3]);
    // Number 12345678 in memory is: 78 56 34 12
    uint32_t number = 0x12345678;
    
    printf(" in memory is: %x\n",(number >> 8)&0xff);
    
    
    return 0;
}