#include<stdio.h>
#include<string.h>
int main(){
    
    int x = 3;
    int y = 4;



int a[] = {1,2,3,4};
int *ptr = a+ 1;
printf("%d %d ",*(p+1),p[-1]);
  
  char  s[] = "Hi";
  printf("%zu %zu",sizeof s,strlen(s));
}