#include <iostream>
using namespace std;

#define I int
#define LL long long

void cht();

int main() {
	cht();
	return 0;
}


void cht() { //彩虹糖的梦
	LL max = 1e9+999, a;
	for (I i = 0; i < 7; i++) {
		cin >> a;
		max = (max <= a ? max : a);
	}
	cout << max;
}