ESc101 Laboratory Assignment
                       Monday of week of 13/9/04

The shortest pass
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A game of football is played between teams of four players each,
in a rectangular ground of size 200x400. The position of the players
at any given time is given by coordinates (x,y) where 0 <= x <= 200
and 0 <= y <= 400. The influence-circle of a player is the circle
of radius 40 centered at that player. 

Write a program which takes as input the positions of the blue team
B1:(x1,y1), B2:(x2,y2), B3:(x3,y3), B4:(x4,y4) and of the red team 
R1:(x5,y5), R2:(x6,y6), R3:(x7,y7), R4:(x8,y8) for some point in time. 
It is assumed that player B1 has the ball. Then it determines the other
blue team member to whom the pass is shortest among all the safe passes
(not passing through the influence-circles of the red players).
Print the result. If no pass is safe, then state the same in the result.Also draw the diagram including the boundary of the ground, coloured
dots to indicate the positions, the influence-circles of the 
red-players (in gray), and the shortest pass by a line segment.

Note: DO NOT USE LOOPS OR ARRAYS OR VECTORS.