#include <iostream.h>
#include <strstream.h>
#include <string.h>

float str_to_float(char* s)
{ istrstream tmp(s, strlen(s));
  float ans;
      tmp >> ans;
      return(ans);
}

int main()
{   char *s = "3  -3.1 \t 3.1416";
    cout << s << "\n";
    int a;
    float b, c;
    istrstream tmp(s, strlen(s));
    
    tmp >> a >> b >> c;
//  istrstream (s, strlen(s)) >> a >> b >> c;
    cout << a+b+c << "\n";
    return(0);
}