#include <iostream>
using namespace std;
int main() {
string a, b, c;
cin >> a >> b >> c;
if ((a < b && a < c) || (a == b && a < c) || (a == c && a < b)) {
cout << a;
}
if ((b < a && b < c) || (a == b && b < c) || (c == b && b < a)) {
cout << b;
}
if ((c < b && c < a) || (c == b && c < a) || (c == a && c < b)) {
cout << c;
}
return 0;
}
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