n=500;
m=50;
k=26;
tube=[|201,26,45|
157,31,43|
476,32,37|
265,13,50|
300,25,27|
478,4,25|
485,29,44|
425,22,44|
392,44,49|
133,25,38|
320,27,50|
384,2,45|
313,25,40|
287,16,29|
7,1,11|
250,7,43|
130,43,46|
46,16,32|
2,17,42|
5,8,13|
158,0,24|
297,27,30|
499,40,47|
397,43,49|
431,0,31|
63,42,50|];
X=[13,40,35,42,27,7,37,35,35,46,28,31,22,30,7,47,30,26,13,44,20,34,5,20,17,22,46,14,7,3,4,37,47,9,46,5,9,24,12,7,24,34,36,44,2,15,1,48,25,18,10,37,16,36,19,11,26,14,47,9,9,14,30,17,24,30,11,12,43,9,49,11,19,41,41,29,28,18,16,22,28,33,29,15,2,40,3,31,29,2,32,24,28,22,36,43,5,8,30,12,6,41,2,38,5,5,20,1,29,2,25,39,30,18,34,45,35,8,19,21,35,19,13,13,45,22,18,9,18,12,16,2,3,42,11,9,43,11,1,14,2,25,2,21,21,35,48,42,2,37,4,17,28,13,10,34,17,39,3,2,2,20,28,11,2,1,42,12,5,9,11,35,6,5,39,41,41,45,28,4,8,44,32,30,34,11,30,26,26,49,35,16,7,2,27,23,19,40,27,42,9,16,4,34,27,5,29,49,41,24,15,9,24,39,23,22,39,30,35,32,47,29,16,21,38,31,1,42,42,30,18,2,44,9,44,41,36,27,4,20,46,49,44,26,28,11,18,12,42,41,21,43,12,19,28,12,43,32,8,33,24,40,11,8,36,1,45,24,19,27,36,32,10,27,26,12,9,1,18,28,22,21,26,30,2,3,11,22,47,46,13,33,24,46,7,5,7,2,29,32,47,23,18,32,47,48,45,42,29,15,12,20,5,5,12,25,31,22,3,24,42,20,13,12,49,33,6,38,28,49,40,8,26,30,43,33,36,27,20,2,30,40,41,1,31,18,33,3,10,42,46,42,38,37,23,31,32,42,10,2,47,22,4,45,11,25,23,45,2,18,30,31,30,44,16,39,29,5,39,6,41,13,13,29,49,42,6,1,45,34,49,35,34,20,48,33,16,14,13,41,39,45,11,34,49,22,45,36,11,8,36,4,41,34,9,21,13,2,22,34,13,35,28,42,27,47,45,25,27,49,39,43,46,35,45,48,35,21,10,6,18,10,18,14,49,35,38,1,32,7,10,40,48,17,24,49,35,15,48,3,47,41,20,20,32,39,41,46,45,3,46,26,21,44,30,27,34,17,14,22,23,48,1,14,18,24,23,6,2,18,2,8,17,1,21,31,42,17,34,47];
Y=[30,8,21,25,41,39,48,13,43,28,21,14,4,29,49,19,42,15,24,40,2,8,24,39,21,1,3,19,49,18,5,38,18,10,3,17,38,13,48,29,28,21,3,47,46,11,2,3,7,21,22,23,16,27,42,43,44,12,13,4,23,14,18,10,34,38,23,26,3,13,24,25,29,21,49,5,48,13,39,44,7,39,49,23,28,6,1,26,27,20,30,10,46,48,48,19,26,34,28,36,2,13,27,30,39,36,33,3,27,20,49,34,2,10,29,45,41,36,46,28,30,10,19,47,19,25,16,47,32,7,12,2,15,26,14,1,27,12,28,1,35,24,39,24,37,41,37,6,35,17,45,2,32,28,31,16,14,23,15,28,36,49,17,29,47,10,23,25,29,20,42,27,25,9,6,46,11,20,6,34,10,1,6,36,38,44,46,36,30,20,40,32,17,39,10,35,17,1,20,17,3,43,42,34,33,18,25,35,6,19,2,34,48,1,31,31,38,47,14,12,41,31,28,13,44,4,44,24,31,15,2,12,31,29,45,46,20,3,3,41,1,3,41,41,11,1,12,12,25,42,37,12,26,20,38,30,16,42,13,40,44,46,7,4,4,12,43,8,47,47,43,29,14,22,10,5,7,20,14,9,28,18,49,1,12,37,34,20,48,28,13,22,38,41,24,29,30,32,36,31,34,8,49,20,33,16,36,19,38,36,25,23,26,39,42,9,47,5,9,5,27,42,12,47,31,16,3,11,48,44,24,26,29,28,10,35,8,5,43,24,34,35,33,24,5,26,25,10,32,8,30,33,24,8,43,3,26,28,43,40,24,31,24,18,37,8,22,11,37,24,4,17,23,44,1,19,11,37,49,6,35,14,13,14,46,34,23,35,49,17,23,28,44,28,25,44,45,28,42,12,33,49,1,6,18,4,12,29,7,9,40,2,17,4,30,3,21,28,40,26,11,9,21,38,5,19,6,41,10,40,20,8,49,23,24,8,33,18,14,41,8,18,35,44,14,38,33,34,36,27,11,49,11,8,28,47,14,4,29,3,37,35,41,8,31,47,34,40,19,24,2,36,46,19,47,27,18,10,41,46,16,19,49,1,17,19,6,43,5,31,44,41,29,30,27,43,29,47,31,7];