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#include<iostream>
using namespace std;
int main(){
    int a,b,c,d,e,f,g,h,i,j,k,l;
    cin>>a>>b>>c>>d>>e>>f>>g>>h>>i>>j>>l;
    k=0;
    l=l+30;
    if(l>=a)
        k=k+1;
    if(l>=b)
        k=k+1;
    if(l>=c)
        k=k+1;
    if(l>=d)
        k=k+1;
    if(l>=e)
        k=k+1;
    if(l>=f)
        k=k+1;
    if(l>=g)
        k=k+1;
    if(l>=h)
        k=k+1;
    if(l>=i)
        k=k+1;
    if(l>=j)
        k=k+1;
    cout<<k;
}