21 2 0 1 1 0.0 0.0 1 2 1.0 0.0 1 3 2.0 0.0 1 4 3.0 0.0 1 5 4.0 0.0 1 6 0.0 1.0 1 7 1.0 1.0 0 8 2.0 1.0 0 9 3.0 1.0 0 10 4.0 1.0 1 11 0.0 2.0 1 12 1.0 2.0 0 13 2.0 2.0 0 14 3.0 2.0 1 15 4.0 2.0 1 16 0.0 3.0 1 17 1.0 3.0 0 18 2.0 3.0 1 19 0.0 4.0 1 20 1.0 4.0 1 21 2.0 4.0 1