#include <iostream> using namespace std; int main() { int a[15] = {0}, x, cnt = 0; for (int i = 1; i <= 10; i++) { cin >> a[i]; } cin >> x; for (int i = 1; i <= 10; i++) { if (a[i] <= x + 30) { cnt++; } } cout << cnt; return 0; }