//tbb.cpp

#include <io.h>
#include <stdio.h>
#include <iostream.h>
//using namespace std;   //  new
int main( ) {
      double x;
       cout << "ans="  << 123.456;
        cout << endl;
      //fflush(stdout);
      fprintf(stdout, "ans=%f\n",  123.456);
      write(1, "hello there ", 8);
      cerr <<  "Give me a number:";
     cin >> x;
      printf("You type %f\n", x);
      return 0;
}