Thank you I already solved the problem

The datas are output of another program written in Matlab and the language is matlab.

Hi
I want to write a program which reads from the end of the length of the data up to 15 data's consicutively,for example if the data is
12 3 4 5 65 45 23 2 3 4 5 6 6 7 8 8 9 9 9 9 9 94 21 12 33 45...