#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;
}

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