C1111121111331311211331333133313331333133313231333133313331323211312331   >>    C111112111133131121133133313331333133313331323133313331333132321131233   <<    C1111121111331311211331333133313331333133313231333133313331323211312333   >>      C1111121111331311211331333133313331333133313231333133313331323211312332   >>