T3

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,a[2100000],b[2100000];
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }for(int i=1;i<=n;i++){
        cin>>b[i];
    }int sum=0;
    for(int i=1;i<=n;i++){
        if(a[i]>b[i])sum+=3;
        if(a[i]<b[i])sum-=3;
    }cout<<sum;
    return 0;
}