Why C is impossible to teach?

enjoy.c

#include <stdio.h>

int a[2][2] = {{1,2},{3,4}};
int (*b)[2] = a;

int main () {
  printf("%d\n", *b[1]);
  printf("%d\n", (*b)[1]);
  printf("%d\n", (*b+1)[1]);
  printf("%d\n", (*(b+1))[1]);
  return 0;
}