s1 -4.0 -5.0 -1.0 2
s2 -4.0 2.0 -1.0 2
s3 1.0 5.0 8.0 2
s4 -6.1 4.0 -1.0 3
s5 10.0 2.0 12.0 5
s6 18.0 3.0 21.0 5
