1test4.in   1   0 letter     't'
2test4.in   1   1 letter     'h'
3test4.in   1   2 letter     'i'
4test4.in   1   3 letter     's'
5test4.in   1  60 letter     'b'
6test4.in   1  61 letter     'r'
7test4.in   1  62 letter     'a'
8test4.in   1  63 letter     'c'
9test4.in   1  64 letter     'k'
10test4.in   1  65 letter     'e'
11test4.in   1  66 letter     't'
12test4.in   1  67 letter     's'
13test4.in   4   0 None       ''
14