MATLAB: Unable to perform assignment because the left and right sides have a different number of elements.

errorMATLAB

for i=1:100                  
 
  s_code1(i)=strcat(s_code(2*i-1,:),s_code(2*i,:)); 
end
c1=cross(s_code1,100);

s_code = cell(100,1); 
for i=1:100                  
  s_code1{i}=strcat({s_code{2*i-1},s_code{2*i}); 
end

V_AA = [100; 200]
L_AA = length(V_AA)
for i=1:L_AA
  F_AA{i} = sprintf('N°: %d', V_AA(i))
end

%or without for loop

F_AA=regexp(sprintf('N°: %d ', V_AA'),'N°: \d+','match')

peaksK = [distancesK(1); peakssK(:); distancesK(end)];

peaksK = [distancesK(1), peakssK(:).', distancesK(end)];