#include <iostream>
#include <cstring>
using namespace std;
char * newstr(const char * newtemp)
{
    int i = 0, j = 0, N;
    N = strlen(newtemp) + 1;
    char *str = new char[N];
    strcpy(str, newtemp);
    char* fin_string = new char[N];
    while (i != N)
    {
        if (str[i] != '<')
        {
            fin_string[j] = str[i];
            i++;
            j++;
        }
        else
        {
            fin_string[j] = str[i];
            i++;
            j++;
            while (str[i] != '>')
                i++;
            fin_string[j] = str[i];
            i++;
            j++;
        }
    }
    return fin_string;
    delete[]str;
}

int main()
{
    if ((strcmp(newstr("Viktoria"), "Viktoria")) || (strcmp(newstr("<kuku>"), "<>")) || (strcmp(newstr("<>"), "<>")) || (strcmp(newstr(""), "")))
    {
        cout << "bad" << endl;;
        return 1;
    }

   cout << "Good" << endl;
return 0;
}