how to append matrix in a loop

I have to write a code where: S1 is a random array with binary numbers, s2 is a random array with numbers in the range 1 to 10. And s3 is such that if s1= 1 0 1 1 0 and s2 = 2 4 3 1 2 then for s3 first 1 will be repeated 2 times, then 0 will be repeated 4 times and so on final output should be 1 1 0 0 0 0 1 1 1 1 0 0

my code:

N = input("Enter the length of random number: ")
S1 = randi([0 1], 1, N)
S2 = randi([1 10], 1, N)

for i=1
while i<=N
  a=S1(1,i);
  b=S2(1,i);
  c=repelem(a,b);
  c=transpose(c)
  i=i+1;
 
endwhile
 

endfor

output: How to display all these c matrix as one , how to append them ?

Answer 1

[Stephen23]

s1 = [1,0,1,1,0];
s2 = [2,4,3,1,2];
v  = repelem(s1,s2)

v = 1×12

1 1 0 0 0 0 1 1 1 1 0 0