class Fraction {
  int num; // instance variable
  int den; // instance variable
  String show() {
    return this.num + "/" + this.den;
  }
}  
   
class Test {
  public static void main(String[] args) {
    Fraction f = new Fraction();
    f.num = 3;
    f.den = 5;
    System.out.println(f.show());
    
  } 
}