1r(0, 0)
2r(0, 1)
3r(0, 100)
4r(1, 0)
5r(1, 3)
6r(1.4, 0)
7r(1.5, 0)
8r(34.45, 2)
9r(64.1223, 4)
10r(-1, 0)
11r(-1, 3)
12r(-1.4, 0)
13r(-1.5, 0)
14r(-34.45, 2)
15r(-64.1223, 4)
16