L = 10000;
M = 100;
spot = [| 
1707, 9754 |
4830, 8139 |
450, 699 |
1614, 1923 |
5351, 8426 |
633, 1301 |
1143, 2038 |
2031, 2770 |
7892, 9454 |
2900, 5372 |
1556, 4622 |
7824, 9361 |
2288, 5863 |
4427, 5401 |
1682, 2530 |
1845, 7963 |
1101, 9050 |
372, 6094 |
490, 1814 |
2976, 6422 |
40, 238 |
1444, 7114 |
4164, 4230 |
2899, 4306 |
2164, 5753 |
2989, 8056 |
2206, 9238 |
6133, 8550 |
5514, 6723 |
32, 6531 |
2485, 6217 |
6688, 7703 |
9448, 9513 |
2250, 5582 |
329, 7526 |
585, 6333 |
7671, 8639 |
1663, 9428 |
2318, 6587 |
1893, 8241 |
490, 9943 |
5387, 8352 |
623, 8176 |
2005, 9290 |
1549, 7504 |
7586, 9409 |
1561, 4967 |
7912, 8298 |
999, 7064 |
2963, 4262 |
481, 3581 |
561, 9508 |
6412, 8329 |
1290, 8717 |
1152, 6665 |
2519, 5864 |
2475, 3734 |
5776, 9804 |
1144, 9708 |
2359, 5767 |
6338, 9115 |
4347, 7773 |
7048, 9338 |
1539, 9273 |
333, 2337 |
397, 9081 |
1824, 7484 |
2048, 9187 |
1211, 6570 |
3505, 5356 |
8265, 8489 |
601, 6747 |
79, 4734 |
7073, 7444 |
1010, 2390 |
2092, 2767 |
39, 2264 |
3656, 5188 |
2090, 3731 |
341, 3823 |
5434, 9283 |
1477, 3091 |
2857, 4990 |
1427, 8598 |
1253, 2750 |
9025, 9367 |
1436, 8831 |
2696, 9089 |
9195, 9480 |
4679, 4766 |
3349, 9523 |
1568, 7304 |
8365, 8999 |
2521, 2728 |
1576, 8469 |
1233, 5769 |
317, 9978 |
4946, 5821 |
4256, 5891 |
9709, 9935 |];