Taken wrong value for string in an example

#1

In step 6 in video, string “abbccda” is taken but value of every character is taken where frequency of a is assumed to be 60 and of be is 30 and c is 8 and of d is 2…but in the string “abbccda” a,b and c occur 2 times and d occur 1 times…

so instead of “abbccda” ==>> 010101101101110

it should be “abbccda” ==>> 00010110101100

please tell me if i am correct

#2

usually character takes 1 bytes.
In this video he has taken its size 2 byte,u can take 1.
you can see this too