using System;

public class String<T>: IComparable<String<T>> where T: IComparable<T>{
  
  private T[] content;

  public String(){
    content = new T[0];
  }

  public String(T e){
    content = new T[]{e}; 
  }

  public String(T e1, T e2){
    content = new T[]{e1, e2}; 
  }

  public String(T e1, T e2, T e3){
    content = new T[]{e1, e2, e3}; 
  }

  public int CompareTo(String<T> other){
    int thisLength = this.content.Length,
        otherLength = other.content.Length;
 
    for (int i = 0; i < Math.Min(thisLength,otherLength); i++){
      if (this.content[i].CompareTo(other.content[i]) < 0)  
         return -1;
      else if (this.content[i].CompareTo(other.content[i]) > 0)
         return 1;
    }
    // longest possible prefixes of this and other are pair-wise equal.
    if (thisLength < otherLength)
       return -1;
    else if (thisLength > otherLength)
       return 1;
    else return 0;
  }

  public override string ToString(){
    string res = "[";
    for(int i = 0; i < content.Length;i++){
      res += content[i];
      if (i < content.Length - 1) res += ", ";
    }
    res += "]";
    return res;
  } 

}