#include #include using namespace std; using namespace atcoder; #define rep(i, n) for (long long i = 0; i < (long long)(n); i++) #define repn(i,end) for(long long i = 0; i <= (long long)(end); i++) #define reps(i,start,end) for(long long i = start; i < (long long)(end); i++) #define repsn(i,start,end) for(long long i = start; i <= (long long)(end); i++) #define ll long long #define ld long double #define print(t) cout << t << endl #define all(a) (a).begin(),(a).end() // << std::fixed << std::setprecision(0) const ll INF = 1LL << 60; template bool chmin(T& a, T b){ if(a > b){ a = b; return true; } return false; } template bool chmax(T& a, T b){ if(a < b){ a = b; return true; } return false; } ll lpow(ll x,ll n){ ll ans = 1; while(n >0){ if(n & 1)ans *= x; x *= x; n >>= 1; } return ans; } int main(){ string a,b;cin >> a >> b; if(a.back() == '1' && b.back() == '1'){ cout << "Odd" << endl; }else{ cout << "Even" << endl; } }