Building Input-Looping Problem

Anyone can help me with the script of input-looping? Example, there is three variables, let us say 'coloumn', 'k', and 'c'. 'coloumn' has been set three. 'k' and 'c' are user's inputs. Here it works...

1. If users inputs k=3, then they must input 'c' for 9 times (k x coloumn). If users input k=4, then they must input 'c' for 12 times (k x coloumn).

2. After 'k' is inputted, the message box will be appeared for user to input the c for as many as they input the (k x coloumn).

[maxRow, maxCol] = size(data);
k=input('Enter a number');
% now I'm stuck with the 'c' thing%

Any idea? Your help will be much appreciated.