// Arup Guha
// 2/25/2023
// Solution to 2022 SER D2 Problem: Blueberry Waffle

using namespace std;

#include <iostream>

int main() {

    int myT, numSec;
    cin >> myT >> numSec;

    // Get total rotation, sub out full circles.
    double angle = 180.0/myT*numSec;
    int total = (int)angle/360;
    angle -= total*360;

    // Here are our options.
    if (angle < 90 || angle > 270)
        cout << "up" << endl;
    else
        cout << "down" << endl;

    return 0;
}