C12313211232233312111111312111133133313331322122223112112331321   >>    C1231321123223331211111131211113313331333132212222311211233132   <<    C12313211232233312111111312111133133313331322122223112112331323   >>      C12313211232233312111111312111133133313331322122223112112331322   >>