C111112111133131121133133313331323133313221131211113313132322233311   >>    C11111211113313112113313331333132313331322113121111331313232223331   <<    C111112111133131121133133313331323133313221131211113313132322233313   >>      C111112111133131121133133313331323133313221131211113313132322233312   >>