C111123313121111121111331333132313331323133313331121133132231221   >>    C11112331312111112111133133313231333132313331333112113313223122   <<    C111123313121111121111331333132313331323133313331121133132231223   >>      C111123313121111121111331333132313331323133313331121133132231222   >>