#include <bits/stdc++.h>
using namespace std;
int main() {
int a, b, c, d;
cin>>a>>b>>c>>d;
if (a<b && a<c && a<d)
cout<<a;
else if (b<a && b<c && b<d)
cout<<b;
else if (c<a && c<b && c<d)
cout<<c;
else
cout<<d;
return 0;
}
I2luY2x1ZGUgPGJpdHMvc3RkYysrLmg+CnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpIHsKCWludCBhLCBiLCBjLCBkOwoJY2luPj5hPj5iPj5jPj5kOwoJaWYgKGE8YiAmJiBhPGMgJiYgYTxkKQoJCWNvdXQ8PGE7CgllbHNlIGlmIChiPGEgJiYgYjxjICYmIGI8ZCkKCQljb3V0PDxiOwoJZWxzZSBpZiAoYzxhICYmIGM8YiAmJiBjPGQpCgkJY291dDw8YzsKCWVsc2UKCQljb3V0PDxkOwoJcmV0dXJuIDA7Cn0=