#include<stdio.h>
#define MAX 100
int top=-1;
int size;
int arr[MAX];
void push(int num){
    if(top==MAX-1){
        printf("stack is full");
    }
    else{
        arr[++top]=num;
    }
}

void pop(){
    if (top==-1){
        printf("stack is empty");
    }
    else{
        while(top!=-1){
            for(itr=top;itr<=0;itr--){
            printf("%d",arr[top]);
            top--;
        }
        }
    }
    

}
int main(){
    int size,num,itr;
    int a;
    scanf("%d",&size);
    for(itr=1;itr<=size;itr++){
        scanf("%d",&num);
        push(num);
        
    }
    pop();
    return 0;
}