C1111233131211111211113313331333133313331333133313331323133313331322331121311   >>    C111123313121111121111331333133313331333133313331333132313331333132233112131   <<    C1111233131211111211113313331333133313331333133313331323133313331322331121313   >>      C1111233131211111211113313331333133313331333133313331323133313331322331121312   >>