#include <iostream>
#include <stdio.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(void) {
	const int N = 20;
	int a[N];
	int i, x, min;
	for(i = 0; i < N; i++)
		scanf("%d", &a[i]);
	min = 1000;
	for(i = 0; i < N; i++)
	{
		if ((a[i]%2 != 0) && (a[i]%5 == 0) && (a[i] < min))
			x = min = a[i];
	}
	printf("%d", x);
	return 0;
}