C111123313121111121111331333133313221333131121211113313231232321   >>    C11112331312111112111133133313331322133313112121111331323123232   <<    C111123313121111121111331333133313221333131121211113313231232323   >>      C111123313121111121111331333133313221333131121211113313231232322   >>