#include <iostream>
int main( void )
{
        char ch;
        std::cout << "h for hex, d for decimal ...\n";
        std::cin >> ch;
        switch ( ch )
        {
                case 'b':
                        std::cout << "binary\n";
                        break;
                case 'o':
                        std::cout << "octal\n";
                        break;
                case 'd':
                        std::cout << "decimal\n";
                        break;
                case 'h':
                        std::cout << "hexadecimal\n";
                        break;
                default:
                        std::cout << "I got something else!\n";
                        break;

        }
}