n=5;
m=8;
p=8;
coins=[|92,99,72,43,43,53,44,26|
28,4,12,26,12,38,37,48|
81,37,69,87,60,45,90,31|
28,78,37,29,89,77,49,61|
77,4,66,19,61,99,90,89|];
cost=[75,74,43,89,87];