#include <bits/stdc++.h>

using namespace std;

typedef long long int ll;

int alfa[26];

int main(){
    memset(alfa,0,sizeof(alfa));
    int n, m, k;
    cin >> n >> m >> k;
    for(int i = 0; i < n; i++){
        string s; cin >> s;
        for(int j = 0; j < s.size(); j++)
            alfa[s[j]-'a']++;
    }
    for(int i = 0; i < m; i++){
        string s; cin >> s;
        for(int j = 0; j < s.size(); j++){
            if(alfa[(s[j]-'a'+k)%26]) alfa[(s[j]-'a'+k)%26]--;
            else{
                cout << "It is gonna be daijoubu." << endl;
                return 0;
            }
        }
    }
    cout << "Make her kokoro go doki-doki!" << endl;

}