The children's game Hotter Colder is played as follows. Player A leaves the room while player B hides an object somewhere within. Player A re-enters at position (0, 0) and then visits various other locations about the room. When player A visits a new position, player B announces “Hotter" if this position is closer to the object than the previous position, “Colder" if it is farther, and “Same" if it is the same distance.
Input consists of up to 50 lines, each containing an (x, y)-coordinate pair followed by “Hotter'', “Colder'', or “Same''. Each pair represents a position within the room, which may be assumed to be a square with opposite corners at (0,0) and (10,10).
For each line of input, print a line giving the total area of the region in which the object may have been placed, to two decimal places. If there is no such region, output “0.00''.
10.0 10.0 Colder 10.0 0.0 Hotter 0.0 0.0 Colder 10.0 10.0 Hotter
50.00 37.50 12.50 0.00