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

int main() {
    
    const char *ptr = "You say goodbye";
    printf("const char *ptr\n");
    printf("ANTES\t = %s\t *ptr = %p\t &ptr = %p\n", ptr, ptr, &ptr);
    ptr = "I say hello";
    printf("DEPOIS\t = %s\t\t *ptr = %p\t &ptr = %p\n", ptr, ptr, &ptr);
    
    return 0;
}