////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// [Tips]
// XCodeでのEOF入力はCtrl+D
// ¥はAlt+\
// ansは結構INTの範囲2,147,483,647を超えることがあるのでlong long使っておいたほうが良い
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////




////////////////////////////////////////
//ABC077
//
////////////////////////////////////////


//#define debug //*******************************************************************************************************************************************
#ifdef debug
#include <chrono>
#endif

#include <iostream>
#include <algorithm> // next_permutation
#include <iomanip>
#include <cmath>
#include <vector>
#include <sstream>
#include <string>
#include <cstring> //memcpy
#include <cstdio>
#include <stack>
#include <queue>
#include <list>
#include <numeric> //accumulate
#include <map>
//#include <unordered_map> //hash func.
#include <fstream> //ifstream, ofstream
#include <iterator> //insert_iterator::inserter
#include <set>


//#define NDEBUG //If NDEBUG is defined before #include <cassert>, assert will be ignored. You had better define NDEBUG when u submit the code.
#include <cassert> //assert

using namespace std;


#define dout cout
//If u wanna output to a text file instead of standard output, plz define OUTPUTFILE.
//#define OUTPUTFILE "output.txt" //************************************************************
#ifdef OUTPUTFILE
#define dout outputfile
ofstream outputfile(OUTPUTFILE);
#define OutputFilePath "/Users/Nag/Documents/Prgm/Test/DerivedData/Test/Build/Products/Debug/output.txt"
#endif


#define din cin
//If u wanna input from a text file instead of standard input, plz define INPUTFROMTEXTFILEを.
//#define INPUTFILE "input.txt" //**************************************************************
#ifdef INPUTFILE
#define din inputfile
ifstream inputfile(INPUTFILE);
#endif

#define scand(A) scanf("%d", &(A))
#define scans(A) scanf("%s", (A))
#define printd(A) printf("%d\n", (A))
#define prints(A) printf("%s\n", (A))
#define disp(A) dout << #A << " = " << setw(3) << (A) << endl
#define disP(A) dout << setw(3) << (A) << " "
#define rep(i,a,n) for(int (i)=(a); (i)<(n); (i)++)
#define show(A,s,g) dout << #A << " = "; rep(j, (s), (g)) {disP(A[j]);} dout << endl
#define showi(A,s,g) dout << #A << " = "; rep(j, (s), (g)) {disP(j);} dout << endl


#define sign(x) ((x)>0)-((x)<0) //x<0: -1, x=0: 0, x>0: +1
#define p(i) ((i)/2)
#define l(i) ((i)*2)
#define r(i) ((i)*2+1)
#define sibling(i) (i^1) //the other sibling of i (ex. 16^1 = 17, 17^1 = 16)
#define isRightChild(i) (i&1) // ex. 16&1 = 0, 17&1 = 1
#define isLeftChild(i) (!(i&1)) // ex. 16&1 = 1, 17&1 = 0

int dx[] = {1, 0, -1,  0};
int dy[] = {0, 1,  0, -1};

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef long long ll;
typedef unsigned long long ull;

//const int INF = (1LL<<31)-1;
const int NONE = -1;
//const ll INF_LL = (ll)9e18-1LL; //Be careful for overflow.
//const ull INF_ULL = (ull)1e19-1ULL;
//#define MOD 1000000007 //大きい素数の代表といえばこの人、10億7さん

#define N_MAX 100010 //num of vertex or element
//#define M_MAX 124760 //num of edge
//#define DATA_MAX 1010

int N;
int a[N_MAX] = {0};
int b[N_MAX] = {0};
int c[N_MAX] = {0};
ll X[N_MAX] = {0};
ll Y[N_MAX] = {0};


//int BIT[N_MAX]; //Binary Indexed Tree
//
//
//void add(int i, int x) {
//    for(; i<=N; i+=(i&-i)) {
//        BIT[i]+=x;
//    }
//}
//
//
//int sum(int i) { //BIT[0 ... i]の和を求める
//    int sum = 0;
//    for(; i>0; i-=(i&-i)) {
//        sum += BIT[i];
//    }
//    
//}



void init() {

}



void display() {
#ifdef debug
    
    dout << "----\n";
    show(a, 0, N);
    show(b, 0, N);
    show(c, 0, N);
    show(X, 0, N);
    show(Y, 0, N);

    
#endif
}







int main() {
    
    //cin, coutの高速化  ＊注意：cinを使うなら全部cinで、scanfを使うなら全部scanfで統一するように！
    cin.tie(0); //cinとcoutの同期を切る
    ios::sync_with_stdio(false); //iostreamとstdioの同期を切る
    
    //read input data
//    scand(N);
    
   
    din >> N;
   
    rep(i,0,N) din >> a[i];
    rep(i,0,N) din >> b[i];
    rep(i,0,N) din >> c[i];

    
    init();
    display();
    
    
    //------------------------------------------------------------------------------------------
#ifdef debug
    //start timer
    auto startTime = chrono::system_clock::now();
#endif
    //------------------------------------------------------------------------------------------
    
    

    sort(a, a+N);
    sort(b, b+N);
    sort(c, c+N);
    
    //B[i]より大きいCの個数を数え上げる
    rep(i,0,N) {
        int x = upper_bound(c, c+N, b[i]) - c;
        X[i] = N - x;
    }
    
    //Xの累積和をYに計算
    for(int i=N-1; i>=0; i--) {
        Y[i] = Y[i+1] + X[i];
    }
    
    display();
    
    
    //calc. ans
    ll ans = 0;
    rep(i,0,N) {
        int x = upper_bound(b, b+N, a[i]) - b;
        ans += Y[x];
    }
    
    
    dout << ans << endl;
    
    
    //------------------------------------------------------------------------------------------
#ifdef debug
    //stop timer
    auto endTime = chrono::system_clock::now();
    auto dur = endTime - startTime;
    auto msec = chrono::duration_cast<chrono::milliseconds>(dur).count();
    dout << fixed << setprecision(4) << (double)msec/1000 << " sec \n";
#endif
    //------------------------------------------------------------------------------------------
    
#ifdef INPUTFILE
    inputfile.close();
#endif
    
#ifdef OUTPUTFILE
    outputfile.close();
    cout << "\"" << OutputFilePath << "\"" << endl;
#endif
    
    return 0;
}

Measured memory_bytes: 2944