C1111233131211111211113313331333133313331322322331323221211332311   >>    C111123313121111121111331333133313331333132232233132322121133231   <<    C1111233131211111211113313331333133313331322322331323221211332313   >>      C1111233131211111211113313331333133313331322322331323221211332312   >>