text: #include <stdio.h>
  
  #include "../../tutorial3/exp1/add.h"
  #include "../../tutorial3/exp1/subtract.h"
  
  
  void main(int argc, char* argv[])
  {
      const float result = add(2.0, 3.0);
      printf("result=%.2f\n", result);
  }
  