#include <stdio.h>
#include <string.h>

int main(void){
	int val = 0;
	scanf("%d",&val);
	
	char fortune[10];
	for(int i = 0;i < val;i ++){
		scanf("%d",fortune);
		
		int len = strlen(fortune);
		if(len == 1){
			printf("%s",fortune);
			return 0;
		}
		
		
	}
}