#include
#include
int main ()
{
printf ("floor of 3.3 is %.1lf\n", floor ( 3.3 ) );
printf ("floor of 4.8 is %.1lf\n", floor ( 4.8 ) );
printf ("floor of -2.3 is %.1lf\n", floor ( -2.3 ) );
printf ("floor of -3.8 is %.1lf\n", floor ( -3.8 ) );
return 0;
}