Time reversal of a sequence (DSP)

n=input('ENTER THE TIME SAMPLE RANGE');

x=input('Enter the corresponding amplitudes');

subplot(2,1,1);

stem(n,x);

xlabel('Time sample');

ylabel('AMPLITUDE');

title('ORIGINAL SEQUENCE');

n2=-fliplr(n);

x2=fliplr(x);

subplot(2,1,2);

stem(n2,x2);

xlabel('Time sample');

ylabel('AMPLITUDE');

title('TIME REVERSED SEQUENCE');