#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int n;
    cin >> n;
    vector<string> p={"Red","Orange","Yellow","Green","Cyan","Blue","Violet"};
    int cnt1[7]={};
    int cnt2[7]={};
    for(int i=0;i<n;i++){
    string q;
    cin >> q;
        for(int j=0;j<7;j++){
            if(q==p[j]){
            cnt1[j]++;
            }
        }
    }
    for(int i=0;i<n;i++){
    string r;
    cin >> r;
        for(int j=0;j<7;j++){
            if(r==p[j]){
            cnt2[j]++;
            }
        }
    }
    for(int i=0;i<7;i++){
        if(cnt1[i]>cnt2[i]){
        cout << p[i] << endl;
        }
    }
}