current_state=2
data_in=6
K=1
m=8
currentstate=deci2change(current_state,K,m)
nextstate=[data_in,currentstate(1:K-1)]
next_state=change2deci(nextstate,m)
out=[data_in,currentstate]
out_put=change2deci(out,m)

% currentstate=[1 0 0 1 0 1 1]
% data_in = 3
% nextstate=[currentstate(1:0)]