public class VariableScope
{
  public static void main(String args[]){
    if(true){
      int x = 7;
      System.out.println(x);
    }
    //System.out.println(x);
    
    // Nested blocks
    {
      int y = 8;
      {
        int z  = 6;
        System.out.println(y + z);
      }
      //System.out.println(y + z);
      System.out.println(y);      
    }
  }
}