C313212111113331323312111133133313331333133313331333133313231333133313121113111   >>    C31321211111333132331211113313331333133313331333133313331323133313331312111311   <<    C313212111113331323312111133133313331333133313331333133313231333133313121113113   >>      C313212111113331323312111133133313331333133313331333133313231333133313121113112   >>