C1111233131211111211113313331333133313231333132313331333133313331333112332311   >>    C111123313121111121111331333133313331323133313231333133313331333133311233231   <<    C1111233131211111211113313331333133313231333132313331333133313331333112332313   >>      C1111233131211111211113313331333133313231333132313331333133313331333112332312   >>