C111113331333132322331333133313331333133313121111331333222313311   >>    C11111333133313232233133313331333133313331312111133133322231331   <<    C111113331333132322331333133313331333133313121111331333222313313   >>      C111113331333132322331333133313331333133313121111331333222313312   >>