C Why does 2 pointers pointing to the same variable print only if there is no asterisk(*)

Quick summary: In our activity, we were supposed to declare 3 variables (x, y, and z) and 4 pointer variables (p1, p2, p3, and p4). Two of those pointer variables (p3 and p4) should point to the same variable (z).

in this article: https://www.geeksforgeeks.org/pointers-in-c-and-c-set-1-introduction-arithmetic-and-array/

it said:

// C program to demonstrate use of * for pointers in C 
#include <stdio.h> 

int main() 
{ 
    // A normal integer variable 
    int Var = 10; 

    // A pointer variable that holds the address of var. 
    int *ptr = &Var; 

    // This line prints value at address stored in ptr. 
    // Value stored is value of variable "var" 
    printf("Value of Var = %d\n", *ptr); 

    // The output of this line may be different in different 
    // runs even on same machine. 
    printf("Address of Var = %p\n", ptr); 

So I did my code:

int main () {

    int x = 10;
        int *p1= &x;

    float y = 12.5;
        float *p2 = &y;

Now is for the p3 and p4 pointer variables. I found this thread: Can two pointer variables point to the same memory Address?

which said in the answer: "Yes, two-pointer variables can point to the same object: Pointers are variables whose value is the address of a C object, or the null pointer. multiple pointers can point to the same object:"

char *p, *q;
p = q = "a";

and did that as well:

int main () {

    int x = 10;
        int *p1= &x;

    float y = 12.5;
        float *p2 = &y;

    char z = 'G';
        char *p3, *p4;
        p3 = p4 = &z;

My confusion now is when printing p3 and p4:

int main () {

    int x = 10;
        int *p1= &x;

    float y = 12.5;
        float *p2 = &y;

    char z = 'G';
        char *p3, *p4;
        p3 = p4 = &z;

    printf("%d  %.2f %s %s", *p1, *p2, p3, p4);

Why in the line printf("%d %.2f %s %s", *p1, *p2, p3, p4); it only print p3 and p4 only if they don't have the asterisk??