C12313211232233312111111312111133133313331323133322233121311132231   >>    C1231321123223331211111131211113313331333132313332223312131113223   <<    C12313211232233312111111312111133133313331323133322233121311132233   >>      C12313211232233312111111312111133133313331323133322233121311132232   >>