// editor3#include<stdio.h>
#include<stdlib.h>

int top = -1, size=5;
int arr[25];

int isFull(){
    if(top == size-1)
        return 1;
    else
        return 0;
}
void PUSH(int num){
    if(isFull()){
        printf("Stack is Full\n");
    }
    else{
        arr[++top]=num;
    }
}

int isEmpty(){
    if(top <= -1){
        //printf("Invalid input")
        return 1;
    }
    else{
        return 0;
    }
}
void POP(){
    if(isEmpty){
        printf("Stack is Empty\n");
    }
    else{
        top--;
    }
}
void DISPLAY(){
    if(isEmpty){
        printf("Stack is empty");
    }
    else{
        for(int i=0;i>=top;i++){
            printf("%d",arr[top]);
        }
    }
    
}
int peek(){
    if(top <= -1){
        printf("sta")
    }
    else{
        
    }
}
int main(){
    int size,choice,num;
    
    if(!scanf("%d",&size) size<0){
        printf("Invalid input");
        return 0;
    }
    for(int i=0;i<size;i++){
        scanf("%d",&num);
        PUSH(num);
    }
    

    DISPLAY();
    return 0;
    
    
}