#include <stdio.h>
void push(int a){
    if(isfull()){
        printf("stack overflow %d\n",a);
        
    }
    else{
        top++;
        stack[top]=value;
        printf("push into stack:%d\n",a);
    }
}
int main(){
    int n;
    scanf("%d",&n);
return 0;
}