C313212111113331323312111133133313331333133313331333133311233133311231   >>    C31321211111333132331211113313331333133313331333133313331123313331123   <<    C313212111113331323312111133133313331333133313331333133311233133311233   >>      C313212111113331323312111133133313331333133313331333133311233133311232   >>