#include <iostream>

using namespace std;

int main () {

int apple[11];

for (int i = 1; i < 11; i++) {
    cin >> apple[i];
}
int h,ans = 0;

cin >> h;

h += 30;

for (int i = 1; i < 11; i++) {
    if (apple[i] < h + 1) {
        ans++;
    }
}

cout << ans;

return 0;

}