C11112331312111112111133132313331333133313233313331333133322131211   >>    C1111233131211111211113313231333133313331323331333133313332213121   <<    C11112331312111112111133132313331333133313233313331333133322131213   >>      C11112331312111112111133132313331333133313233313331333133322131212   >>