C313212111133131211331333133313331333133313231333133313331323233232311   >>    C31321211113313121133133313331333133313331323133313331333132323323231   <<    C313212111133131211331333133313331333133313231333133313331323233232313   >>      C313212111133131211331333133313331333133313231333133313331323233232312   >>