#include <bits/stdc++.h>   using namespace std;   int main() {     int p1, p2, p3, p4, a, b;     cin >> p1 >> p2 >> p3 >> p4 >> a >> b;     int m = min(min(min(p1, p2), p3), p4);     cout << max(0, min(b + 1, m) - a) << endl;     return 0;   }   