#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<to;x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

int N,A,B[60],C,D[60];

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>N>>A;
	FOR(i,A) cin>>B[i];
	cin>>C;
	FOR(i,C) cin>>D[i];
	
	sort(B,B+A);
	reverse(B,B+A);
	sort(D,D+C);
	for(i=A;i<N;i++) B[i]=B[i-A];
	for(i=C;i<N;i++) D[i]=D[i-C];
	sort(B,B+N);
	sort(D,D+N);
	reverse(B,B+N);
	reverse(D,D+N);
	int ret=0;
	FOR(x,N) {
		FOR(y,N) if(B[x]>D[y]) {
			ret++;
			D[y]=1010;
		}
	}
	cout<<ret<<endl;
	
	
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}