03. Animal Type

#include <iostream>

using namespace std;

int main() {
    string animal;
    cin >> animal;

    if (animal == "dog") {
        cout << "mammal" << endl;
    }
    else if (animal == "crocodile" || animal == "tortoise" || animal == "snake") {
        cout << "reptile" << endl;
    }
    else {
        cout << "unknown" << endl;
    }

    return 0;
}