C313212111133131211331333133313331333133311233133313221211111333132312311   >>    C31321211113313121133133313331333133313331123313331322121111133313231231   <<    C313212111133131211331333133313331333133311233133313221211111333132312313   >>      C313212111133131211331333133313331333133311233133313221211111333132312312   >>