┌─────┐                                                                                                                 
         │start│                                                                                                                 
         └──┬──┘                                                                                                                 
  __________▽__________                                                                                                          
 ╱                     ╲                                                                                         ┌──────────────┐
╱                       ╲________________________________________________________________________________________│Very expensive│
╲ Does it cost > 1000 ? ╱yes                                                                                     └──────────────┘
 ╲_____________________╱                                                                                                         
            │no                                                                                                                  
   _________▽_________                       ___________________                                                                 
  ╱                   ╲                     ╱                   ╲                                ┌──────────────┐                
 ╱                     ╲__________________ ╱                     ╲_______________________________│Very expensive│                
 ╲ Does it cost > 100? ╱yes                ╲ Does it cost > 0.5? ╱yes                            └──────────────┘                
  ╲___________________╱                     ╲___________________╱                                                                
            │no                                       │no                                                                        
    ________▽_________                       _________▽_________                                                                 
   ╱                  ╲          ┌───────┐  ╱                   ╲                     ┌─────────┐                                
  ╱                    ╲_________│Correct│ ╱                     ╲____________________│expensive│                                
  ╲ Does it cost > 10? ╱yes      └───────┘ ╲ Does it cost > 0.1? ╱yes                 └─────────┘                                
   ╲__________________╱                     ╲___________________╱                                                                
            │no                                       │no                                                                        
    ________▽________                        _________▽__________                                                                
   ╱                 ╲    ┌─────┐           ╱                    ╲           ┌───────┐                                           
  ╱                   ╲___│Cheap│          ╱                      ╲__________│Correct│                                           
  ╲ Does it cost > 1? ╱yes└─────┘          ╲ Does it cost > 0.01? ╱yes       └───────┘                                           
   ╲_________________╱                      ╲____________________╱                                                               
            │no                                       │no                                                                        
        ┌───▽──┐                            __________▽__________                                                                
        │coucou│                           ╱                     ╲    ┌─────┐                                                    
        └──────┘                          ╱                       ╲___│Cheap│                                                    
                                          ╲ Does it cost > 0.001? ╱yes└─────┘                                                    
                                           ╲_____________________╱                                                               
                                                      │no                                                                        
                                               ┌──────▽──────┐                                                                   
                                               │Take my money│                                                                   
                                               └─────────────┘