#include <iostream>
using namespace std;
int main()
{
    int x, y;
    cin >> x >> y;
    if(x == 0 && y == 0) {
        cout << "0";
    }
    else if(x > 0 && y > 0) {
        cout << "I";
    }
    else if(x < 0 && y > 0) {
        cout << "II";
    }
    else if(x < 0 && y < 0) {
        cout << "III";
    }
    else if(x > 0 && y < 0) {
        cout < "IV";
    }
    else if(x == 0 && y > 0 || y < 0)
    {
        cout << "0Y";
    }
    else if(y == 0 && x > 0 || x < 0)
    {
        cout << "X0";

    }
}