#include<stdio.h>
#include<stdlib.h>
int stack[10], top = -1;
void push(int data)
{
    if(top>9)
    {
        printf("Stack is full\n");
    }
    stack[++top]=data;
    printf("%d is pushed\n",data);
}
int pop()
{
    if(top<0)
    {
        printf("Stack is full\n");
        return 0;
    }
    return stack[top--];
}

int main()
{
    push(7);
    push(11);
    push(9);
    printf("%d\n",pop());
    printf("%d\n",pop());
    printf("%d\n",pop());

    return 0;
}