C111113331333132322331333133313331333133313121111331333132313331333112113313311   >>    C11111333133313232233133313331333133313331312111133133313231333133311211331331   <<    C111113331333132322331333133313331333133313121111331333132313331333112113313313   >>      C111113331333132322331333133313331333133313121111331333132313331333112113313312   >>