#include<iostream>


using namespace std;

float add (float a, float b) {
      float c = 0;
      c = a + b;
      return c;
}

float subtract (float a, float b) {
      float c = 0;
      c = a - b;
      return c;
}

float multiply (float a, float b) {
      float c = 0;
      c = a * b;
      return c;
}

float divide (float a, float b) {
      float c = 0;
      c = a / b;
      return c;
      
}

int main () {
    while(1) {
    float a, b, c, decision;
    
    cin >> a;
    cout << "\n";
    cin >> b;
    cout << "\n";
    
    cout << "(1) +, (2) -, (3) *, (4) /.....?" << "\n";
    cin >> decision;
    
    if (decision == 1) { c = add(a,b); };
    if (decision == 2) { c = subtract(a,b); };
    if (decision == 3) { c = multiply(a,b); };
    if (decision == 4) { c = divide(a,b); };
    cout << "----->"  << c;  
}

    system("PAUSE");
    return EXIT_SUCCESS;

}