#include <iostream>
using namespace std;
int main()
{
    int a,b,c;
    bool s = 1;
    cin >> a >> b >> c;
    if (a != 0)
    {
        cout << a;
        s = 0;
    }
    if (b != 0)
    {
        if (b == 1)
        {
            if (a == 0)
                cout << "x";
            else
                cout << "+x";
        }
        else if (b == -1)
            cout << "-x";
        else if ((b < 0) or (a == 0))
            cout << b << "x";
        else
            cout << "+" << b << "x";
        s = 0;
    }
    if (c != 0)
    {
        if (c == 1)
        {
            if ((a == 0) and (b == 0))
                cout << "y";
            else
                cout << "+x";
        }
        else if (c == -1)
            cout << "-y";
        else if ((c < 0) or ((a == 0) and (b == 0)))
            cout << c << "y";
        else
            cout << "+" << c << "y";
        s = 0;
    }
    if (s)
        cout << 0;
    return 0;
}