The document contains repeating patterns of letters and symbols, with each line consisting of two primes or double primes of the letters A, B, C, and r. This repetitive structure is shown through multiple iterations of the same line format.

1. A''
A'
B''
B'
C''
C'
r''
r'

2. A''
A'
B''
B'
C''
C'
r''
r'

3. A''
A'
B''
B'
C''
C'
r''
r'

4. A''
A'
B''
B'
C''
C'
r''
r'

5. A''
A'
B''
B'
C''
C'
r''
r'