int main(){
    int n;
    cin>>n;
    vector<int> meti;
    for(int i=0; i<n; i++){
        int a;
        cin>>a;
        meti.push_back(a);
    }
	int curr;
	cin>>curr;
    int left = 0;
    int right = meti.size();
    while(right!=left) {
        if(meti[(left+right)/2]<=curr){
            left = (left+right)/2+1;
        }else{
            right = (left+right)/2;
        }
    }
    cout<<left<<endl;
    return 0;
}