C111123313121111121111331333133313331323231333133313112113313211231221   >>    C11112331312111112111133133313331333132323133313331311211331321123122   <<    C111123313121111121111331333133313331323231333133313112113313211231223   >>      C111123313121111121111331333133313331323231333133313112113313211231222   >>