Grupo 1: (1,10) (0,17) (6,19) (13,18) (15,19) (20,17) (20,14) (17,11) (16,11) (15,9) (15,6) (16,0) (16,-4) (16,-7) (15,-11) (16,-16) (17,-16) (19,-18) (17,-19) (13,-19) (12,-17) (12,-16) (11,-10) (11,-6) (9,-7) (8,-7) (4,-8) (3,-12) (5,-19) (4,-20) (0,-20) (-1,-19) (-1,-16) (-1,-11) (-2,-7) (-4,-6) (-8,-8) (-8,-13) (-8,-15) (-7,-16) (-7,-17) (-8,-18) (-11,-18) (-12,-16) (-12,-9) (-8,2) (-7,5) (-14,9) (-13,9) (-19,10) (-19,11) (-18,12) (-12,12) (-2,7) (1,8) (4,8) (3,10) (3,12) (1,10) Grupo 2: (4,8) (5,7) (6,4) (10,3) (12,5) (13,7) (15,9) Grupo 3: (7,11) (5,10) (4,11) (5,12) (6,12) (7,11) Grupo 4: (14,11) (12,10) (11,11) (12,12) (13,12) (14,11) Grupo 5: (4,-8) (5,-13) (6,-14) (6,-15) (4,-15) Grupo 6: (3,12) (6,19) Grupo 7: (6,4) (7,6) (9,6) (10,3) Grupo 8: (16,11) (13,18) 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20