n=110;
grades=[|79,36,64|
30,74,75|
33,80,43|
65,61,41|
37,40,53|
74,63,53|
48,69,34|
87,31,83|
60,57,56|
52,92,36|
80,68,34|
73,92,37|
62,80,48|
54,84,63|
73,40,39|
73,31,61|
44,52,79|
54,54,94|
90,94,86|
31,89,64|
32,40,83|
94,50,80|
45,73,58|
58,92,95|
82,68,94|
69,69,87|
66,71,68|
79,41,62|
75,36,59|
41,34,62|
98,73,71|
33,95,87|
38,57,76|
48,70,67|
78,68,41|
78,77,71|
31,43,91|
46,44,77|
55,91,49|
67,47,84|
43,51,42|
78,92,37|
71,61,43|
95,68,48|
67,81,32|
48,33,39|
57,31,66|
92,84,72|
84,75,47|
37,98,49|
68,86,64|
60,32,44|
74,58,81|
33,35,96|
57,57,45|
58,97,44|
51,60,82|
35,64,94|
66,95,83|
55,92,40|
94,37,45|
91,53,32|
49,45,98|
85,32,91|
45,51,88|
96,99,81|
43,64,81|
57,67,72|
83,31,39|
66,72,87|
66,72,76|
72,85,74|
98,68,85|
49,60,94|
85,45,30|
39,76,83|
73,76,35|
53,34,36|
81,94,70|
80,46,76|
71,52,65|
68,40,37|
60,84,71|
80,74,65|
96,44,30|
59,79,91|
91,42,48|
98,82,90|
94,94,63|
93,70,54|
39,78,98|
59,57,72|
84,84,99|
33,48,68|
31,67,91|
91,49,88|
63,47,69|
37,64,41|
65,63,88|
66,32,96|
86,98,86|
30,90,98|
92,96,51|
65,97,42|
97,54,51|
66,98,92|
95,88,60|
45,31,97|
51,68,33|
51,46,88|];