> r.reads
      [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
 [1,]    1    2    2    3    1    1    4    4
 [2,]    1    2    3    2    4    1    3    3
 [3,]    4    1    1    3    3    4    2    4
 [4,]    2    2    3    4    4    4    1    1
 [5,]    4    1    1    2    2    3    1    1
 [6,]    3    4    4    1    1    1    2    3
 [7,]    1    1    1    2    3    2    4    1
 [8,]    3    4    4    4    1    1    2    2
 [9,]    2    3    2    4    1    3    3    4
[10,]    2    2    2    3    3    4    4    1
[11,]    1    1    2    2    3    1    1    4
[12,]    2    3    3    4    1    2    2    3
[13,]    3    3    4    4    2    3    2    4
[14,]    1    2    2    3    4    4    4    1
[15,]    3    3    4    1    2    2    3    1
[16,]    1    3    1    2    2    4    4    1
[17,]    4    4    1    1    1    2    3    3
[18,]    1    2    2    4    4    1    1    4
[19,]    1    4    1    1    2    2    2    1
[20,]    3    4    4    4    1    1    2    2
[21,]    4    2    3    2    4    4    2    3
[22,]    2    2    3    3    4    4    1    1
[23,]    1    4    4    1    1    3    3    4
[24,]    2    3    3    4    4    1    1    1
[25,]    3    3    4    4    1    4    2    1
[26,]    2    4    3    1    4    1    1    2
[27,]    1    1    2    2    2    1    3    1
[28,]    4    1    3    2    3    4    4    4
[29,]    4    2    3    3    4    1    2    2
[30,]    1    1    2    3    3    4    1    2
[31,]    4    4    1    1    4    4    2    3
[32,]    1    3    2    3    4    4    4    3
[33,]    1    1    4    4    4    3    4    1
[34,]    1    2    3    3    4    1    2    2
[35,]    1    4    3    3    3    3    4    4
[36,]    3    3    3    1    1    4    4    4
[37,]    2    1    1    1    2    3    2    4
[38,]    4    1    3    3    4    1    2    2
[39,]    2    3    3    4    4    1    1    1
[40,]    2    2    3    1    1    4    4    1