Odd or Even (UVALive 3656, Regionals 2006 >> Latin America - South America)

///     Raihan Ruhin
///     CSE, Jahangirnagar University.
///     Dhaka-Bangladesh.
///     id: raihanruhin (topcoder / codeforces / codechef / uva / uvalive), 3235 (lightoj)
///     mail: raihanruhin@ (yahoo / gmail / facebook)
///     blog: ruhinraihan.blogspot.com

#include<bits/stdc++.h>
using namespace std;

#define SET(a) memset(a,-1,sizeof(a))
#define CLR(a) memset(a,0,sizeof(a))
#define PI acos(-1.0)

#define MOD 1000000007
#define MX 100010


int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    int tc, kk=1, n, m, x, y, a, b, c;
    string s;
    //cin>>tc;
    while(cin>>n && n)
    {
        int odd1=0, odd2=0, even1=0, even2=0;
        for(int i=0;i<n;i++)
        {
            cin>>x;
            if(x%2) odd1++;
            else even1++;
        }
        for(int i=0;i<n;i++)
        {
            cin>>x;
            if(x%2) odd2++;
            else even2++;
        }
        cout<< n - min(odd1, even2) - min(odd2, even1)<<"\n";
    }
return 0;
}