M=200;
N=200;
K=36;
L=27;
D=500;
students=[|175,33,176,33|
107,125,106,125|
161,99,162,99|
121,54,122,54|
171,85,170,85|
189,38,190,38|
32,97,33,97|
51,178,50,178|
35,48,34,48|
46,117,46,116|
21,158,21,159|
61,45,61,46|
63,111,63,112|
103,76,102,76|
170,163,170,164|
61,73,61,74|
137,188,137,187|
33,45,33,44|
184,88,185,88|
90,171,90,170|
144,165,143,165|
89,55,88,55|
161,196,161,197|
70,72,71,72|
185,63,185,64|
192,146,191,146|
127,13,128,13|
1,108,2,108|
119,19,120,19|
50,104,51,104|
3,122,3,123|
183,83,183,82|
173,33,172,33|
118,93,118,92|
159,30,160,30|
11,3,10,3|
178,52,178,51|
176,167,176,166|
8,96,7,96|
117,58,116,58|
5,101,6,101|
35,162,35,163|
79,192,79,191|
129,12,129,13|
41,68,42,68|
194,62,194,61|
55,100,55,101|
106,120,106,121|
194,124,194,125|
159,146,159,147|
132,123,133,123|
30,29,29,29|
169,93,168,93|
125,157,125,156|
107,24,106,24|
83,167,82,167|
77,31,77,32|
27,171,28,171|
84,59,84,60|
186,14,186,13|
27,61,28,61|
65,93,65,92|
23,195,23,194|
113,113,114,113|
39,191,39,192|
151,36,152,36|
143,128,143,129|
63,79,64,79|
19,52,20,52|
163,16,163,17|
176,176,177,176|
35,62,36,62|
184,159,185,159|
67,196,66,196|
87,183,88,183|
45,72,44,72|
83,145,84,145|
91,189,91,190|
146,188,145,188|
152,171,151,171|
51,63,50,63|
16,51,16,50|
85,136,85,137|
87,32,88,32|
176,20,177,20|
21,118,22,118|
31,137,31,136|
135,111,134,111|
110,113,110,112|
189,85,189,86|
77,112,77,113|
134,152,135,152|
130,26,130,27|
50,156,49,156|
6,192,5,192|
2,93,2,94|
76,181,76,180|
93,164,93,165|
151,183,152,183|
27,96,27,97|
134,46,133,46|
62,120,61,120|
183,169,182,169|
172,55,173,55|
116,30,115,30|
22,180,23,180|
22,178,22,179|
87,159,88,159|
174,125,175,125|
122,185,122,186|
34,3,33,3|
184,8,183,8|
170,92,169,92|
185,151,186,151|
130,72,130,71|
77,37,77,38|
141,56,141,57|
193,66,193,65|
175,128,176,128|
36,151,36,152|
107,115,106,115|
103,121,103,120|
144,191,145,191|
4,114,3,114|
37,68,37,67|
149,195,149,194|
182,64,183,64|
24,9,24,8|
172,1,173,1|
88,20,88,21|
119,125,119,124|
152,22,152,23|
35,170,36,170|
26,166,26,167|
158,91,159,91|
113,69,113,68|
106,17,106,18|
4,19,5,19|
123,193,124,193|
32,122,33,122|
8,169,9,169|
151,34,151,35|
56,105,57,105|
66,119,66,118|
72,157,72,156|
4,48,4,49|
188,10,187,10|
111,187,110,187|
48,162,48,163|
26,122,26,123|
59,140,59,141|
72,136,71,136|
150,134,150,133|
48,120,48,119|
30,13,29,13|
21,108,21,109|
29,121,30,121|
115,44,116,44|
95,115,96,115|
132,10,131,10|
47,43,47,44|
33,91,33,92|
120,154,121,154|
46,106,47,106|
11,8,12,8|
173,4,174,4|
117,183,116,183|
83,135,84,135|
176,50,176,51|
134,87,133,87|
199,117,199,116|
16,192,16,193|
18,181,17,181|
179,176,179,177|
67,143,68,143|
38,89,38,90|
102,64,101,64|
161,117,161,116|
178,103,177,103|
62,3,61,3|
153,9,153,8|
143,92,143,93|
155,174,154,174|
140,113,140,114|
142,65,141,65|
120,128,121,128|
70,68,70,67|
170,189,169,189|
192,130,192,129|
195,54,195,53|
42,169,41,169|
21,83,22,83|
4,165,4,166|
143,75,143,76|
186,172,185,172|
44,12,44,11|
52,184,51,184|
162,73,162,74|
51,36,52,36|
183,182,183,181|
112,119,112,118|
18,170,17,170|
122,141,122,142|
70,49,70,48|
181,81,181,80|
141,44,141,43|
68,148,67,148|
20,134,19,134|
194,86,193,86|
62,6,62,5|
85,70,85,69|
99,156,99,157|
121,15,122,15|
200,113,200,114|
77,13,77,12|
184,27,183,27|
147,166,146,166|
8,99,9,99|
41,147,41,146|
161,29,162,29|
24,183,23,183|
13,1,12,1|
167,3,166,3|
101,42,101,41|
77,150,76,150|
18,107,18,108|
52,117,53,117|
148,51,148,52|
95,106,95,105|
118,133,118,134|
105,58,104,58|
32,105,32,106|
120,145,120,144|
155,59,155,58|
163,57,163,58|
188,159,188,158|
112,29,111,29|
77,60,77,61|
178,9,177,9|
43,69,44,69|
142,151,143,151|
141,171,142,171|
93,135,93,136|
115,71,116,71|
190,170,190,169|
126,74,126,73|
132,193,132,194|
92,190,91,190|
181,19,181,18|
79,128,79,129|
110,114,109,114|
66,149,66,148|
123,15,122,15|
25,53,25,54|
61,80,62,80|
58,71,57,71|
186,109,186,110|
50,59,51,59|
119,165,120,165|
116,87,115,87|
181,53,180,53|
171,71,171,70|
70,82,70,83|
189,33,189,34|
66,176,66,177|
190,17,189,17|
58,130,58,131|
24,96,25,96|
98,97,98,98|
164,169,164,170|
198,197,199,197|
149,143,149,142|
160,187,160,186|
109,140,109,141|
17,58,18,58|
137,147,136,147|
138,148,138,149|
120,157,121,157|
102,138,101,138|
63,145,64,145|
124,169,123,169|
125,183,125,184|
182,98,182,99|
159,85,160,85|
3,140,2,140|
128,169,127,169|
132,185,133,185|
157,83,157,84|
41,83,42,83|
112,19,113,19|
186,194,186,195|
69,66,69,65|
92,122,92,123|
120,97,120,98|
123,59,123,58|
157,125,157,124|
36,19,36,18|
157,54,157,53|
81,191,82,191|
27,124,26,124|
5,172,6,172|
81,44,81,45|
143,40,144,40|
192,3,192,4|
58,113,58,114|
103,185,103,186|
73,136,73,137|
116,105,117,105|
83,99,83,100|
14,68,15,68|
84,161,84,160|
74,69,74,70|
8,24,8,23|
90,175,89,175|
193,170,192,170|
198,188,197,188|
79,12,79,11|
153,32,153,31|
142,117,141,117|
174,126,174,127|
179,72,179,71|
131,107,131,106|
182,118,182,117|
191,178,191,177|
54,185,54,186|
102,115,102,116|
87,126,86,126|
57,6,58,6|
112,115,113,115|
111,113,110,113|
61,112,60,112|
109,52,108,52|
104,15,105,15|
76,11,76,12|
46,82,45,82|
37,162,38,162|
99,178,98,178|
9,114,9,115|
175,168,174,168|
131,113,132,113|
123,152,124,152|
81,101,81,100|
29,125,29,126|
149,169,149,168|
58,184,58,185|
7,154,8,154|
110,98,109,98|
145,27,145,28|
143,168,144,168|
165,47,164,47|
24,36,24,35|
197,111,197,112|
192,140,191,140|
92,123,91,123|
106,56,105,56|
58,199,57,199|
193,26,194,26|
20,11,21,11|
35,137,36,137|
113,68,113,67|
197,129,196,129|
125,82,125,81|
105,165,105,164|
5,104,5,103|
139,170,139,171|
70,88,70,87|
155,60,154,60|
59,131,59,130|
170,126,171,126|
37,15,37,16|
168,90,169,90|
159,186,160,186|
120,178,119,178|
128,146,128,147|
65,78,64,78|
120,54,121,54|
56,80,56,81|
123,111,123,112|
133,27,132,27|
150,185,150,186|
59,56,58,56|
3,111,3,112|
173,14,173,15|
58,15,57,15|
64,142,65,142|
193,172,193,173|
87,129,86,129|
77,122,77,123|
183,140,182,140|
186,138,185,138|
55,6,55,5|
133,166,134,166|
83,187,83,188|
126,57,125,57|
107,127,107,126|
53,23,53,24|
94,53,93,53|
118,18,118,19|
133,21,133,22|
84,55,84,54|
153,29,154,29|
115,112,115,113|
167,175,168,175|
168,125,168,124|
52,163,51,163|
163,146,163,147|
42,125,43,125|
99,195,100,195|
107,2,106,2|
143,142,143,141|
95,164,96,164|
62,159,62,158|
99,132,100,132|
139,112,140,112|
155,84,155,85|
68,117,67,117|
172,167,172,168|
157,132,157,131|
53,160,53,159|
82,186,82,185|
134,1,134,2|
176,32,176,31|
50,61,50,62|
101,156,101,155|
154,9,153,9|
194,70,193,70|
35,109,34,109|
179,129,180,129|
129,95,130,95|
76,32,76,33|
157,141,157,142|
174,142,174,141|
15,119,15,120|
122,6,123,6|
113,198,113,199|
190,9,189,9|
134,1,135,1|
3,132,4,132|
118,121,117,121|
77,65,77,66|
108,4,108,5|
90,55,91,55|
196,125,195,125|
56,132,55,132|
111,99,112,99|
117,194,117,195|
26,125,27,125|
180,90,180,89|
10,160,9,160|
189,156,188,156|
131,77,131,78|
167,81,168,81|
32,127,31,127|
7,125,7,124|
140,116,141,116|
112,96,112,97|
153,149,153,150|
161,33,162,33|
154,160,155,160|
40,200,40,199|
12,106,11,106|
9,156,9,157|
122,77,123,77|
74,103,74,102|
84,124,85,124|
26,167,27,167|
17,39,16,39|
184,71,185,71|
53,69,53,70|
127,2,126,2|
5,10,5,9|
88,167,88,168|
145,199,144,199|
140,195,139,195|
163,127,163,126|
70,33,70,32|
47,6,47,5|
18,94,18,93|
19,73,20,73|
98,45,98,46|
36,31,36,30|
51,173,52,173|
146,144,147,144|
157,44,157,45|
4,47,4,46|
62,138,62,139|
95,77,95,76|
7,135,7,136|
146,149,146,150|
116,194,117,194|
160,198,160,199|
188,17,188,16|
15,172,15,173|
180,69,179,69|
173,108,174,108|
176,43,177,43|
176,67,177,67|
147,44,147,43|
21,147,21,148|
104,23,104,24|];