1n_res = 5;
2n_events = 52;
3n_prec = 121;
4source = 1;
5sink = 52;
6min_lvl = [-10, 2, -4, -1, -16];
7max_lvl = [8, 12, 8, 5, 0];
8rr = [| 0, -1, -1, -1, 2, 2, 0, 0, -1, 1, 0, 2, -2, -2, 1, 0, -1, -1, -2, 0, -2, 0, 2, 0, 1, 1, -2, 0, 2, 1, 0, 0, -2, -2, 0, 0, 0, -2, 0, 0, -1, -2, -2, 0, -2, 2, -1, 2, 2, 0, -1, 0
9      | 0, 0, 0, 1, 0, -1, 0, 2, 1, 2, 0, 0, 0, 2, 0, -2, 1, 2, 1, 1, 0, -1, 1, 1, -1, 1, 1, 0, 0, -1, 2, -2, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 2, -2, 2, 0, 0
10      | 0, -1, 0, 0, 0, -1, -2, 0, -2, -1, 0, -2, 0, -1, 0, 0, 2, 2, 2, -2, 0, 2, 2, 0, 0, 0, 2, 1, 1, 2, 0, 1, 1, -2, 1, 0, 2, 2, -1, 0, 1, -2, 1, -1, 0, 1, 1, 0, -2, 1, 0, 0
11      | 0, 0, 0, 2, 0, -1, 0, -1, -2, 2, 0, 1, 0, -1, 0, 0, -1, -1, 1, 0, 0, 2, -1, -1, 2, 0, 0, 0, 1, -1, 0, 0, 0, 0, -1, 0, 0, 2, 0, -1, 1, 2, 2, -2, 0, 0, -2, -1, 2, -1, 1, 0
12      | 0, 0, 0, 1, 0, 0, -2, -1, 1, -2, 1, -2, 1, 0, 0, -1, -1, 0, 0, 1, 0, 0, -1, 0, 0, -2, 0, 0, -2, 0, -2, -2, -1, 0, 2, -2, 1, 1, -2, -1, 0, 2, 1, -1, 2, 0, 0, -2, 0, 0, 0, 0 |];
13prec = [| 1, 0, 4
14        | 1, 0, 7
15        | 1, 0, 2
16        | 1, 0, 6
17        | 1, 0, 35
18        | 1, 0, 3
19        | 1, 0, 5
20        | 2, 1, 50
21        | 2, 17, 22
22        | 3, 16, 37
23        | 4, 6, 13
24        | 5, -5, 35
25        | 6, 3, 29
26        | 7, 0, 20
27        | 8, -27, 17
28        | 8, 4, 48
29        | 9, -34, 35
30        | 9, 0, 19
31        | 9, -46, 5
32        | 9, 16, 38
33        | 9, 1, 28
34        | 9, -30, 15
35        | 10, -50, 7
36        | 10, 0, 12
37        | 11, -7, 23
38        | 11, -3, 34
39        | 12, 2, 46
40        | 12, 2, 25
41        | 12, -65, 20
42        | 13, -34, 4
43        | 13, -68, 7
44        | 13, 12, 46
45        | 14, -14, 42
46        | 14, -26, 32
47        | 14, 2, 33
48        | 15, -34, 5
49        | 15, 11, 45
50        | 15, 16, 41
51        | 15, 14, 9
52        | 16, 15, 41
53        | 16, 22, 11
54        | 17, 9, 8
55        | 17, -25, 3
56        | 17, 12, 48
57        | 18, 3, 38
58        | 18, 6, 47
59        | 19, -22, 9
60        | 19, 13, 47
61        | 19, -45, 5
62        | 19, -1, 24
63        | 19, -37, 35
64        | 19, 23, 42
65        | 20, 2, 26
66        | 20, 3, 46
67        | 21, 8, 49
68        | 21, 7, 39
69        | 22, 11, 50
70        | 22, -19, 2
71        | 23, 12, 45
72        | 23, 0, 34
73        | 23, -7, 28
74        | 24, 11, 27
75        | 24, 8, 47
76        | 25, 1, 40
77        | 25, 0, 51
78        | 25, 12, 44
79        | 26, -37, 20
80        | 26, 17, 30
81        | 26, 8, 10
82        | 27, -44, 24
83        | 27, -46, 31
84        | 27, -2, 47
85        | 28, 10, 45
86        | 29, -34, 6
87        | 29, 5, 16
88        | 30, -4, 43
89        | 31, 8, 18
90        | 32, 16, 24
91        | 32, -1, 14
92        | 32, -1, 47
93        | 32, 10, 27
94        | 32, -33, 42
95        | 33, 0, 41
96        | 34, 7, 28
97        | 35, 4, 27
98        | 35, 11, 15
99        | 36, 0, 49
100        | 36, 12, 51
101        | 36, 7, 21
102        | 37, -6, 17
103        | 38, -7, 24
104        | 38, 10, 52
105        | 39, 1, 44
106        | 39, -1, 49
107        | 40, 23, 30
108        | 40, 2, 21
109        | 40, 28, 13
110        | 41, -1, 47
111        | 41, 4, 31
112        | 41, -20, 42
113        | 41, -33, 6
114        | 42, 0, 32
115        | 43, 2, 36
116        | 44, -20, 30
117        | 44, -29, 36
118        | 44, -14, 39
119        | 44, 18, 49
120        | 45, 1, 52
121        | 46, -50, 13
122        | 46, 1, 52
123        | 46, -89, 26
124        | 47, -17, 27
125        | 47, 7, 52
126        | 48, -36, 17
127        | 48, -30, 8
128        | 48, 8, 52
129        | 48, -39, 37
130        | 49, 5, 52
131        | 50, -32, 2
132        | 50, 6, 52
133        | 51, 5, 52 |];
134