// C
#ifndef _GLIBCXX_NO_ASSERT
#include <cassert>
#endif
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>

#if __cplusplus >= 201103L
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <cwchar>
#include <cwctype>
#endif

// C++
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>

#if __cplusplus >= 201103L
#include <array>
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#endif


#define f(i,n) for(int i=0;i<(n);i++)


#define inf (int)(3e18)
#define int long long
#define mod (int)(1000000007)

#define intt long long

using namespace std;

//Library

int modpow(int x, int y, int m = mod) {
    int res = 1;
    while (y) {
        if (y % 2) {
            res *= x;
            res %= m;
        }
        x = x * x % mod;
        y /= 2;
    }
    return res;
}

int mypow(int x, int y) {
    int res = 1;
    while (y) {
        if (y % 2) {
            res *= x;
        }
        x = x * x ;
        y /= 2;
    }
    return res;
}
//is the number (x) a prime number?
bool prime(int x){
    for (int i=2; i*i<=x; i++) {
        if (!(x%i)) {
            return false;
        }
    }
    return true;
}

double kyori(pair<int, int> f, pair<int, int> s){
    double ans=0;
    double t = fabs(f.first-s.first);
    double y = fabs(f.second-s.second);
    ans=sqrt(t*t+y*y);
    return ans;
}

//saidai-kouyakusuu
int gcd(int x,int y){
    if (!y) {
        return x;
    }
    return gcd(y,x%y);
}

//Union-Find Tree

class Union_Find {
    vector<int> par;
    vector<int> rankmy;
public:
    Union_Find(int size){
        par = vector<int>(size);
        rankmy = vector<int>(size);
        for (int i=0; i<size; i++) {
            par[i]=i;
        }
    }
    
    int find(int x){
        if (par[x]==x) {
            return x;
        }
        return par[x]=find(par[x]);
    }

    void unite(int x,int y){
        x=find(x);
        y=find(y);
        if (x==y) {
            return;
        }
        if (rankmy[x]<rankmy[y]) {
            par[x]=y;
        }else{
            par[y]=x;
            if (rankmy[x]==rankmy[y]) {
                rankmy[x]++;
            }
        }
    }

    bool same(int x,int y){
        return find(x)==find(y);
    }
    
};

//Union-Find-End

//SegTree
template <class T>
class SegTree {
    int n;
    vector<T> data;
    T def;
    function<T(T, T)> operation;
    function<T(T, T)> update;
 

    T _query(int a, int b, int k, int l, int r) {
        if (r <= a || b <= l) return def; // 交差しない
        if (a <= l && r <= b)
            return data[k];
        else {
            T c1 = _query(a, b, 2 * k + 1, l, (l + r) / 2); // 左の子
            T c2 = _query(a, b, 2 * k + 2, (l + r) / 2, r); // 右の子
            return operation(c1, c2);
        }
    }
 
  public:

    SegTree(size_t _n, T _def, function<T(T, T)> _operation,
            function<T(T, T)> _update)
        : def(_def), operation(_operation), update(_update) {
        n = 1;
        while (n < _n) {
            n *= 2;
        }
        data = vector<T>(2 * n - 1, def);
    }
 

    void change(int i, T x) {
        i += n - 1;
        data[i] = update(data[i], x);
        while (i > 0) {
            i = (i - 1) / 2;
            data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]);
        }
    }
 

    T query(int a, int b) {
        return _query(a, b, 0, 0, n);
    }
 

    T operator[](int i) {
        return data[i + n - 1];
    }
};

#define R_MIN ([](long long a, long long b) { return min(a, b); })
#define R_MAX ([](long long a, long long b) { return max(a, b); })
#define R_SUM ([](long long a, long long b) { return a + b; })

#define NORMAL_UPDATE ([](long long a, long long b) { return b; })
#define ADD_UPDATE ([](long long a, long long b) { return a + b; })
#define MINUS_UPDATE ([](long long a, long long b) { return a - b; }
//Seg-Tree-End

//dfs
vector<int> v[100004];
bool went[100004];
void dfs(int x){
    went[x]=true;
    for (int i=0; i<(int)v[x].size(); i++) {
        if (!went[v[x][i]]) {
            dfs(v[x][i]);
        }
    }
}

//number of keta
int keta(int x){
    int ans=0;
    while (x) {
        x/=10;
        ans++;
    }
    return ans;
}

//sum of keta
int ketasum(int x){
    int ans=0;
    while (x) {
        ans+=x%10;
        x/=10;
    }
    return ans;
}

int lcm(int x,int y){
    int ans=x/gcd(x, y)*y;
    return ans;
}
int twobeki(int x){
    int ans=0;
    while (1) {
        if (!(x&1)) {
            ans++;
            x/=2;
        }else{
            break;
        }
    }
    return ans;
}

int kai(int x, int y) {
    int res = 1;
    for (int i = x - y + 1; i <= x; i++) {
        res *= i; res %= mod;
    }
    return res;
}

int comb(int x, int y) {
    if (y > x)return 0;
    return kai(x, y) * modpow(kai(y, y), mod - 2) % mod;
}

int fukugen(vector<int> l){
    int ans=0;
    for (int i=0; i<l.size(); i++) {
        ans*=10;
        ans+=l[i];
    }
    return ans;
}
#define rep(i,n) for(int i=0;i<n;i++)
//Library-End

int n,a[100004],b[100004],c[100004],kazu[100004],ans;
signed main(){
    cin>>n;
    rep(i, n)cin>>a[i];
    rep(i, n)cin>>b[i];
    rep(i, n)cin>>c[i];
    sort(a,a+n);
    sort(b,b+n);
    sort(c,c+n);
    
    for (int i=n-1; i>=0; i--) {
        int basho=upper_bound(c, c+n, b[i])-c;
        kazu[i]=n-basho;
        kazu[i]+=kazu[i+1];
    }
    
    for (int i=0; i<n; i++) {
        int basho=upper_bound(b, b+n, a[i])-b;
        ans+=kazu[basho];
    }
    cout<<ans<<endl;
}


Measured memory_bytes: 5760