#include<stdio.h>
main()
{
   int a;
   double b, c;

   a = 6;
   b = 0.7;
   while (a < 10 && b < 3.0) {
       if (a < 8) {
           a = a + 1;
           b = b * 2;
           c = a - b;
       }
       else {
           a = a - 2;
           b = b + 0.8;
       }
       c = a - b;
       printf("%.2lf-%d-%.2lf\n", c, a, b);
   }
}