S1 -4.0 -1.0 -5.0 2
S2 -4.0 -1.0 2.0 2
S3 1.0 8.0 5.0 2
S4 -6.1 -1.0 4.0 3
S5 10.0 12.0 2.0 5
S6 18.0 21.0 3.0 5