C1111133313331323223313331333133313113313231333133313231121131211   >>    C111113331333132322331333133313331311331323133313331323112113121   <<    C1111133313331323223313331333133313113313231333133313231121131213   >>      C1111133313331323223313331333133313113313231333133313231121131212   >>