#include<iostream> #define MAXN 10 using namespace std; int a[MAXN]; int main() { int n,s=0,t,i; for(i=1;i<=10;i++){ cin>>a[i]; } cin>>n; for(i=1;i<=10;i++) { if(a[i]<=n+30) s=s+1; } cout<<s; return 0; }