#include <stdio.h>

int main()
{
   float a=1;
   while (1.0f!=1.0f+a)
      a*=0.9f;
   printf("float %.2e\n",a);
   double b=1;
   while (1.0!=1.0+b)
      b*=0.9;
   printf("double %.2e\n",b);
   long double c=1;
   while (1.0L!=1.0L+c)
      c*=0.9L;
   printf("long double %.2e\n",(double)c);
   


   return 0;
}