#include <stdio.h>

int stack[100];
int top = -1;

void push(int x){
    stack[++top] = x;
}

void pop(){
   top = -1;
}

int main(){

    int arr[] = {5, 2, 7, 3, 8};

    for(int i = 0; i < 5; i++){
        if(arr[i] > stack[top]){
            pop();
        }
        push(arr[i]);
    }

    printf("%d",stack[top]);

    
    return 0;
}