C111113331333132322331333133313331333133313121111331333132233133313331333221321   >>    C11111333133313232233133313331333133313331312111133133313223313331333133322132   <<    C111113331333132322331333133313331333133313121111331333132233133313331333221323   >>      C111113331333132322331333133313331333133313121111331333132233133313331333221322   >>