急急急！！！帮我排个19个队伍的单循环赛的表！！！

round 1: 1-19 2-18 3-17 4-16 5-15 6-14 7-13 8-12 9-11 10 轮空
round 2: 2-1 3-19 4-18 5-17 6-16 7-15 8-14 9-13 10-12 11 轮空
round 3: 3-2 4-1 5-19 6-18 7-17 8-16 9-15 10-14 11-13 12 轮空
round 4: 4-3 5-2 6-1 7-19 8-18 9-17 10-16 11-15 12-14 13 轮空
round 5: 5-4 6-3 7-2 8-1 9-19 10-18 11-17 12-16 13-15 14 轮空
round 6: 6-5 7-4 8-3 9-2 10-1 11-19 12-18 13-17 14-16 15 轮空
round 7: 7-6 8-5 9-4 10-3 11-2 12-1 13-19 14-18 15-17 16 轮空
round 8: 8-7 9-6 10-5 11-4 12-3 13-2 14-1 15-19 16-18 17 轮空
round 9: 9-8 10-7 11-6 12-5 13-4 14-3 15-2 16-1 17-19 18 轮空
round 10: 10-9 11-8 12-7 13-6 14-5 15-4 16-3 17-2 18-1 19 轮空
round 11: 11-10 12-9 13-8 14-7 15-6 16-5 17-4 18-3 19-2 1 轮空
round 12: 12-11 13-10 14-9 15-8 16-7 17-6 18-5 19-4 1-3 2 轮空
round 13: 13-12 14-11 15-10 16-9 17-8 18-7 19-6 1-5 2-4 3 轮空
round