n=220;
grades=[|79,57,69|
95,33,85|
65,74,61|
82,39,48|
33,64,57|
73,39,69|
34,56,82|
96,43,52|
81,53,71|
65,74,58|
96,59,98|
99,77,55|
90,95,95|
81,37,83|
35,34,73|
33,98,46|
70,36,92|
37,40,92|
78,75,91|
88,89,42|
54,40,38|
78,37,95|
61,96,82|
63,56,83|
99,71,94|
99,89,87|
53,30,68|
46,71,77|
55,72,37|
34,98,93|
59,79,72|
67,68,61|
67,65,67|
48,33,32|
97,61,79|
62,33,90|
93,52,93|
84,56,41|
89,77,98|
39,35,84|
39,94,76|
72,62,97|
56,49,83|
74,35,96|
33,37,40|
32,86,99|
92,76,31|
36,55,93|
50,60,54|
52,67,32|
40,62,69|
70,83,71|
31,52,50|
61,42,57|
31,59,78|
36,95,76|
37,95,56|
86,44,53|
54,73,87|
79,50,48|
57,69,90|
81,79,80|
61,84,45|
36,97,42|
62,34,88|
66,81,33|
59,56,80|
44,99,38|
48,92,69|
35,84,87|
58,67,76|
70,87,35|
52,54,96|
78,80,63|
38,69,67|
34,65,65|
76,79,77|
39,33,93|
82,85,84|
48,83,52|
45,84,97|
71,48,76|
72,92,61|
72,32,47|
32,52,64|
72,74,96|
71,32,84|
60,90,84|
82,48,43|
64,38,72|
78,53,67|
80,83,50|
89,98,93|
65,57,88|
31,84,56|
35,90,46|
48,63,38|
40,40,48|
37,37,83|
76,56,46|
59,83,40|
97,55,98|
39,92,94|
59,54,39|
82,64,82|
32,85,95|
33,47,45|
65,80,53|
74,91,74|
82,54,76|
94,63,72|
43,97,99|
75,98,95|
33,77,63|
78,92,56|
44,70,40|
37,76,91|
57,69,35|
65,60,91|
72,75,52|
30,98,96|
32,56,32|
98,36,70|
55,69,90|
42,52,74|
87,61,83|
59,77,94|
82,46,49|
75,58,39|
83,50,62|
58,50,68|
61,39,44|
47,35,36|
89,76,93|
94,85,46|
85,98,90|
58,37,77|
69,71,49|
31,63,36|
88,86,97|
34,37,44|
33,32,37|
76,72,62|
82,45,83|
75,67,64|
81,59,55|
64,89,96|
51,54,43|
50,33,42|
58,88,90|
44,40,42|
87,54,92|
87,38,49|
53,34,40|
52,47,73|
53,47,98|
37,42,32|
68,35,75|
92,53,97|
63,76,60|
34,43,73|
87,58,72|
44,32,69|
87,45,90|
94,34,56|
70,93,69|
79,46,60|
31,63,71|
36,66,55|
39,52,75|
62,86,47|
72,87,90|
49,35,39|
70,42,79|
50,33,72|
91,56,98|
37,72,93|
71,55,54|
78,69,67|
65,51,45|
91,51,73|
79,39,37|
38,72,39|
64,68,67|
89,58,86|
43,67,76|
57,69,39|
32,61,69|
72,49,72|
94,48,51|
86,67,93|
89,44,42|
84,87,55|
82,33,86|
93,87,36|
79,73,98|
90,40,64|
55,41,68|
60,36,74|
69,44,33|
57,86,63|
65,63,52|
50,45,64|
32,94,58|
96,72,76|
50,75,71|
38,66,70|
80,84,51|
76,31,64|
63,81,74|
61,45,53|
32,63,94|
61,60,99|
79,92,44|
80,39,62|
40,54,75|
70,41,46|
50,57,58|
57,45,54|
63,86,61|];