exp1.m

clc;
msg = [];stuff = [];

n = input("Enter length of message ");
disp("Enter the message bits: ");

i = 1;j=1;count = 0;

while i<= n
    msg(i)=input('');
    stuff(j)=msg(i);
    
    if(msg(i)==1)
        count=count+1;
    elseif(msg(i) == 0)
        count = 0;
    end
    
    if(count == 5)
        j = j + 1;
        stuff(j) = 0;
        count = 0;
    end
     j = j + 1;
     i = i + 1;
end

disp("Message entered :");
disp(msg);

disp("Message after bit stuffing ");
disp(stuff);

des = [];
i=1;j=1;count=0;

while j <= n
 if(stuff(i) == 1)
     count = count + 1;
 elseif(stuff(i) == 0)
    count = 0;
 end
 des(j) = stuff(i);
 if(count == 5)
     i =i + 1;
     count = 0;
 end
 j = j + 1;
 i = i + 1;
end

disp("Message after Bit Unstuffing");
disp(des);