L = 10000;
M = 100;
spot = [| 
273, 295 |
5243, 5360 |
5340, 6314 |
2673, 4220 |
2912, 5444 |
322, 3201 |
150, 4806 |
2266, 8500 |
4555, 5569 |
3454, 7269 |
3470, 6279 |
2740, 7228 |
5053, 7109 |
5952, 9364 |
6360, 9561 |
5450, 8931 |
6739, 8732 |
4724, 9142 |
7821, 8019 |
301, 1987 |
5757, 7787 |
2314, 6931 |
1505, 4272 |
346, 3684 |
8138, 8595 |
7088, 8529 |
3033, 6128 |
7105, 9149 |
4028, 7076 |
1901, 4953 |
2040, 2127 |
945, 2803 |
7969, 8134 |
4218, 6251 |
7402, 7848 |
6131, 7827 |
366, 5030 |
5873, 6988 |
1903, 4588 |
4404, 7249 |
498, 9600 |
2275, 2830 |
8194, 9718 |
1949, 5046 |
2149, 5216 |
2751, 2761 |
3822, 4433 |
2915, 6663 |
1673, 7788 |
144, 4744 |
4436, 7462 |
5048, 9607 |
677, 5076 |
1346, 1491 |
1642, 4034 |
1214, 8054 |
342, 3255 |
6551, 7957 |
3813, 4205 |
7395, 7455 |
3609, 7231 |
1538, 7331 |
1176, 5083 |
7552, 7911 |
2745, 9697 |
3316, 4025 |
5532, 9009 |
45, 3967 |
1788, 4591 |
5053, 9675 |
6427, 9363 |
5494, 6389 |
1159, 3191 |
1375, 5091 |
998, 6934 |
1548, 8083 |
8959, 9055 |
4484, 6222 |
2672, 8598 |
583, 1791 |
1379, 9930 |
2981, 5757 |
2731, 4801 |
1668, 6894 |
439, 3320 |
1267, 1330 |
827, 1896 |
118, 7765 |
654, 2570 |
5531, 8947 |
568, 6138 |
611, 9389 |
2441, 5701 |
3900, 4854 |
1154, 6451 |
2480, 3190 |
3142, 9281 |
1209, 7857 |
1767, 3819 |
1136, 3023 |];