#include
     
      #include
      
       #include
       
        using namespace std;int main(){    cout<<"default bool values: "<
        
         <<" "<
         
          <<"\nalpha bool value: "<
          
           <
           
            <<" "<
            
             <
             
              <<"hexadecimal: "<
              
               <<100*sqrt(2.0)<<'\n' //<<"use defaults: "<
               
                <<100*sqrt(2.0)<<"\n\n" cout<
                
                 >noskipws; while(cin>>ch) cout<
                 
                  >skipws;}