Calculator with Stacks in C - c

Question

good morning, I am making a calculator with a "Stack" of 10 positions in the "C" lenguage. What I have to do is, for example, I write the number "50", I press ENTER and that "50" must go to the first position "01". Then I write another number, for example "20" + ENTER and 20 should go to position "01", "50" goes up to "02" and so on, always after pressing ENTER. I am using the Gotoxy for this.
I can manage to print the first number in position "01" but after that I don't know how to proceed.
I'm new to programming so excuse me if I don't realize obvious things, I'm trying to learn so if you can give me a hand I would appreciate it. Here I leave the code in case you want to try it and get an idea of ​​what I'm trying to do, thanks
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
void gotoxy(int x, int y);
void PilaPush();
void ImprimirPila();
int main() {
printf(" ____________________________________________________\n");
printf("|10:_________________________________________________|\r\n");
printf("|09:_________________________________________________|\r\n");
printf("|08:_________________________________________________|\r\n");
printf("|07:_________________________________________________|\r\n");
printf("|06:_________________________________________________|\r\n");
printf("|05:_________________________________________________|\r\n");
printf("|04:_________________________________________________|\r\n");
printf("|03:_________________________________________________|\r\n");
printf("|02:_________________________________________________|\r\n");
printf("|01:_________________________________________________|\r\n");
printf("| |\r\n");
printf("| |\r\n");
printf("|____________________________________________________|\r\n");
printf("|_____1_____|_____2_____|_____3_____|__+__|__DROP[P]_|\r\n");
printf("|_____4_____|_____5_____|_____6_____|__-__|__SWAP[S]_|\r\n");
printf("|_____7_____|_____8_____|_____9_____|__*__|__DEL[D]__|\r\n");
printf("|_____,_____|_____0_____|____EXE____|__/__|__NUM[N]__|\r\n");
printf("|_____'_____|_ARRIBA[W]_|__ABAJO[Z]_|_____|_SWAP1[Q]_|\r\n");
gotoxy(3, 12);
PilaPush();
ImprimirPila();
getch();
return 0;
}
void gotoxy(int x, int y) {
HANDLE Ventana;
Ventana = GetStdHandle(STD_OUTPUT_HANDLE);
COORD Coordenadas;
Coordenadas.X = x;
Coordenadas.Y = y;
SetConsoleCursorPosition(Ventana, Coordenadas);
}
typedef struct Nodo {
int elemento;
struct Nodo *siguiente;
} Nodo;
// funciones para utilizar un manejador global
Nodo *primero = NULL;
// Insertar un nuevo nodo a la pila
void PilaPush() {
Nodo *nuevo;
// crear el nuevo Nodo.
nuevo = (Nodo *)malloc(sizeof(Nodo)); // Asignar de forma dinamica un espacio de memoria al Nodo
printf(" ");
scanf("%d", &nuevo->elemento);
// Agregar el nodo al principio de la Pila
nuevo->siguiente = primero; // El nuevo dato ahora es primero, que apunta a (NULL)
primero = nuevo; // Primero (NULL) ahora es el nuevo dato
}
// sacar un elemento de una pila
void ImprimirPila() {
Nodo *actual = (Nodo *)malloc(sizeof(Nodo));
actual = primero;
if (primero != NULL) {
while (actual != NULL) {
gotoxy(9, 10);
printf("%d", actual->elemento);
actual = actual->siguiente;
gotoxy(3, 12);
printf(" ");
gotoxy(3, 12);
}
} else {
printf("No hay ningun dato ");
}
}