C313212111113331323312111133133313331333133313331333133313331323233123321   >>    C31321211111333132331211113313331333133313331333133313331333132323312332   <<    C313212111113331323312111133133313331333133313331333133313331323233123323   >>      C313212111113331323312111133133313331333133313331333133313331323233123322   >>