abra cadabra
A
A B
A B R
A B R A
A B R A C
A B R A C A
A B R A C A D
A B R A C A D A
A B R A C A D A B
A B R A C A D A B R
A B R A C A D A B R A
A B
A B R
A B R A
A B R A C
A B R A C A
A B R A C A D
A B R A C A D A
A B R A C A D A B
A B R A C A D A B R
A B R A C A D A B R A