C1111121111331311211331333133313231333132211312113313231333132322123311   >>    C111112111133131121133133313331323133313221131211331323133313232212331   <<    C1111121111331311211331333133313231333132211312113313231333132322123313   >>      C1111121111331311211331333133313231333132211312113313231333132322123312   >>