#include <iostream>
#include <iomanip>
using namespace std;
int main(void)
{
   cout << "ohne........: " << 123.456 << endl;
   cout << "fixed.......: " << fixed << 123.456 << endl;
   cout << "scientific..: " << scientific << 123.456 << endl;
   cout << "hexfloat....: " << hexfloat << 123.456 << endl;
   cout << "defaultfloat: " << defaultfloat << 123.456 << endl;
   return 0;
}