#include <iostream> using namespace std; int main() { int height[10]; for(int j=0;j<10;j++) { cin >> height[j]; } int ttheight; cin >> ttheight; int n = 0; for (int i=0;i<=9;i++) { if (height[i]<=(ttheight+30)) n++; } cout << n << endl; return 0; }