#include<bits/stdc++.h> using namespace std; #define int long long int32_t main () { long long n; cin >> n; long long a[n], b[n]; for(int i = 0;i<n;i++)cin>>a[i]; for(int i =0;i<n;i++)cin>>b[i]; long long len = 0, tmp = 0; bool check = false; long long ans = 0; for(int i = 0;i<n;i++) { if(a[i] < b[0]) { if(check)len++; tmp++; } if(a[i] == b[0]) { len = ++tmp; check = true; } else { ans+=len; tmp = 0; len = 0; check = false; } } cout<<ans+len<<'\n'; }