mat = [
  75 00 00 00 00 00 00 00 00 00 00 00 00 00 00;
  95 64 00 00 00 00 00 00 00 00 00 00 00 00 00;
  17 47 82 00 00 00 00 00 00 00 00 00 00 00 00;
  18 35 87 10 00 00 00 00 00 00 00 00 00 00 00;
  20 04 82 47 65 00 00 00 00 00 00 00 00 00 00;
  19 01 23 75 03 34 00 00 00 00 00 00 00 00 00;
  88 02 77 73 07 63 67 00 00 00 00 00 00 00 00;
  99 65 04 28 06 16 70 92 00 00 00 00 00 00 00;
  41 41 26 56 83 40 80 70 33 00 00 00 00 00 00;
  41 48 72 33 47 32 37 16 94 29 00 00 00 00 00;
  53 71 44 65 25 43 91 52 97 51 14 00 00 00 00;
  70 11 33 28 77 73 17 78 39 68 17 57 00 00 00;
  91 71 52 38 17 14 91 43 58 50 27 29 48 00 00;
  63 66 04 68 89 53 67 30 73 16 69 87 40 31 00;
  04 62 98 27 23 09 70 98 73 93 38 53 60 04 23
]

n, m = size(mat)
for i = 2:n
  for j = 1:i
    mat[i,j] += max(mat[i-1,j], j>1 ? mat[i-1,j-1] : 0)
  end
end
println(maximum(mat[end,:]))
