# 5' splice model : ndha 
# A C G T
0 54 2 44 
43 1 1 56 
57 1 7 35 
8 1 39 52 
56 2 40 2 
55 1 0 44 
splice
1 0 2 97 
40 1 1 58 
55 0 1 44 
1 41 1 58