#题解

#include <iostream>
using namespace std;

int main(){
int a[10];
int c = 0;
for (int i = 0;i <= 9;i += 1){
cin >> a[i];
}
int h;
cin >> h;
for (int i = 0;i <= 9;i += 1){
if (a[i] <= h +30){
c += 1;
}
}

cout<<c<<endl;

return 0;

}