C313212111113331323312111133133313331333133313331333133313231322131231   >>    C31321211111333132331211113313331333133313331333133313331323132213123   <<    C313212111113331323312111133133313331333133313331333133313231322131233   >>      C313212111113331323312111133133313331333133313331333133313231322131232   >>