include

include

include

using namespace std;

int main(void) { int N; vector A; vector B; int temp=0;

cin>>N;
for(int i=0;i<N;i++)    //输入N个A队列鱼 
{
    cin>>temp;
    A.push_back(temp);
}   
for(int j=0;j<N;j++)  //输入N个B队列鱼 
{
    cin>>temp;
    B.push_back(temp);
}

vector<int>::reverse_iterator maxpointerA=max_element(A.rbegin(),A.rend());   
vector<int>::reverse_iterator maxpointerB=max_element(B.rbegin(),B.rend());  

int A_max=*maxpointerA;
int B_max=*maxpointerB; 
int A_len=distance(A.rbegin(),maxpointerA);
int B_len=distance(B.rbegin(),maxpointerB);

if(A_max>B_max)
    cout<<A_len+1<<endl;   //vector的index值是从0开始的，所以需要+1 
else
    cout<<B_len+1<<endl;

return 0;

}