C111123313121111121111331323133313331333132322133313231333131123313233131   >>    C11112331312111112111133132313331333133313232213331323133313112331323313   <<    C111123313121111121111331323133313331333132322133313231333131123313233133   >>      C111123313121111121111331323133313331333132322133313231333131123313233132   >>