how to split strings equally with a rest

i want to split a string in equal parts like in this example:input='abcdefghijk' output='abc def ghi jk'

Answer 1

[madhan ravi]

input_string ='abcdefghijk' % don’t use variable name as input because it may contradict with built-in function
ns = numel(input_string);
n = 3;
Output = cellstr(reshape([input_string repmat(' ',1,ceil(ns/n)*n-ns)],n,[])')' % as cell

Output = char(Output) % as char

[madhan ravi]

Make sure to accept and also give a vote if it was useful the answer if it helped

[Image Analyst]

Please, in your answer, correct bad mistakes that the poster made, like calling the variable by the name of a built-in function like input() -- don't let them pass by without pointing them out.

[madhan ravi]

Thank you @sir Image Analyst rectified :)