/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
// your code goes here
Scanner s
= new Scanner
(System.
in); int n = s.nextInt();
int a[] = new int[n];
int b[] = new int[n];
int c[] = new int[n];
int count = 0;
for(int i=0; i<n; i++ ){
a[i] = s.nextInt();
}
for(int i=0; i<n; i++ ){
b[i] = s.nextInt();
}
for(int i=0; i<n; i++ ){
c[i] = s.nextInt();
}
for(int i=0; i<n; i++){
for(int j=0; j<n; j++){
if(a[i]> b[j]){
i++;
break;
}
for( int k=0; k<n; k++){
if(a[i]<b[j] && b[j]<c[k]){
count++;
}
}
}
}
}
}
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