#include <iostream>
#include <stdlib.h>
#include <string.h>

using namespace std;

class Number
{
public:
    Number()
    {
        value = 0;
    }

    int getValue() const
    {
        return value;
    }

protected:
    int value;
};

class RomanNumber : public Number
{
public:
    RomanNumber(const char *c)
    {
        if (strcmp(c, "I") == 0)
            value = 1;
        else if (strcmp(c, "II") == 0)
            value = 2;
        else if (strcmp(c, "III") == 0)
            value = 3;
        else if (strcmp(c, "IV") == 0)
            value = 4;
        else if (strcmp(c, "V") == 0)
            value = 5;
        else if (strcmp(c, "VI") == 0)
            value = 6;
        else if (strcmp(c, "VII") == 0)
            value = 7;
        else if (strcmp(c, "VIII") == 0)
            value = 8;
        else if (strcmp(c, "IX") == 0)
            value = 9;
        else if (strcmp(c, "X") == 0)
            value = 10;
    }
};

class ArabicNumber : public Number
{
public:
    ArabicNumber(const char *c)
    {
        value = atoi(c);
    }
};

int main()
{
    Number *l, *r;
    char x[256], y[256], oper;
    int rezult;

    cin >> x >> oper >> y;

    if (x[0] >= '0' && x[0] <= '9')
        l = new ArabicNumber(x);
    else
        l = new RomanNumber(x);

    if (y[0] >= '0' && y[0] <= '9')
        r = new ArabicNumber(y);
    else
        r = new RomanNumber(y);

    switch (oper)
    {
    case '+':
        rezult = l->getValue() + r->getValue();
        break;

    case '-':
        rezult = l->getValue() - r->getValue();
        break;

    case '*':
        rezult = l->getValue() * r->getValue();
        break;

    case '/':
        rezult = l->getValue() / r->getValue();
        break;
    }

    cout << l->getValue() << ' ' << oper << ' ' << r->getValue() << " = " << rezult << endl;
    delete l;
    delete r;

    system("pause");
    return 0;
}