puts "=================================="
puts "BUC60622"
puts "=================================="
puts "There was an infinity of solutions and also c1, c2 and c3 are solutions"
puts ""
puts "It takes visual check for this BUG"
puts "=================================="
puts ""

circle c3 500 3000 250
circle c2 375 3000 125
circle c1 625 3000 125
cirtang result -c c1 -c c2 -c c3

checklength result_1 -l 1570.7963267948965
checklength result_2 -l 785.39816339744868
checklength result_3 -l 785.39816339744823
checklength result_4 -l 523.59877559829806
checklength result_5 -l 523.59877559829806