j=0
g=1
x=[1]
y=[1]
r=[1]
while g<>0:
    x[j]=input()
    x=x+[x[j]]
    y[j]=input()
    y=y+[y[j]]
    r[j]=input()
    r=r+[r[j]]
    g=r[j]
    j=j+1
    if r[j]<0:
        print('error, r must be >0')

import turtle
max=y[0]
for i in range(1,j+1):
    if y[i-1]>max:
        max=y[i-1]
        a=i-1

for i in range(1,j+1):
    if a<>i:
        turtle.pencolor('green')
        turtle.penup()
        turtle.goto(x[i-1],y[i-1])
        turtle.pendown()
        turtle.circle(r[i-1])
    else:
        turtle.pencolor('red')
        turtle.penup()
        turtle.goto(x[i-1],y[i-1])
        turtle.pendown()
        turtle.circle(r[i-1])

turtle.exitonclick()