P0001. Upward numbers P32149


Statement
 

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Public test cases

  • Input

    1234 4321 4554 2345 8901 123 6784

    Output

    YES

  • Input

    
        
                            
    
                            
    
                                
    Output
    
                                
                    
    NO

    
        
                            
    
                        
    
                    
    
                    
                
    • 
            
                
  • 
                    
    
                        
    
                            
    
                                
    Input
    
                                
                    
    90 0

    
        
                            
    
                            
    
                                
    Output
    
                                
                    
    YES

    
        
                            
    
                        
    
                    
    
                    
                
    • 
            
                
    
            
    
        
        
        
        
    
            
    
                Information
            
    
            
    
                
    
                    
    Author
    
                    
    Professorat de P1
    

                    
    Language
    
                    
    English
    

                    
            
    Translator
            
    Carlos Molina
    

            
    Original language
            
    Catalan
    
        
                    
            
    Other languages
    
            
    Catalan 
    
        
                    
            
    Official solutions
    
            
    C++ 
    
        
                    
            
    User solutions
    
            
    C++ Java Python