C313212111133131211331333133313331333133311233133313233313232233133322211211   >>    C31321211113313121133133313331333133313331123313331323331323223313332221121   <<    C313212111133131211331333133313331333133311233133313233313232233133322211213   >>      C313212111133131211331333133313331333133311233133313233313232233133322211212   >>