C1111233133313231133133313331333133313231312111133131211113311232322231   >>    C111123313331323113313331333133313331323131211113313121111331123232223   <<    C1111233133313231133133313331333133313231312111133131211113311232322233   >>      C1111233133313231133133313331333133313231312111133131211113311232322232   >>