C313212111113331323312111133133313331333133313331333132212123311   >>    C31321211111333132331211113313331333133313331333133313221212331   <<    C313212111113331323312111133133313331333133313331333132212123313   >>      C313212111113331323312111133133313331333133313331333132212123312   >>