C313212111133131211331333133313331333133311233133313331312232132233231   >>    C31321211113313121133133313331333133313331123313331333131223213223323   <<    C313212111133131211331333133313331333133311233133313331312232132233233   >>      C313212111133131211331333133313331333133311233133313331312232132233232   >>