C13112133313331323321333133313331333133313331323133313112113113313331131211   >>    C1311213331333132332133313331333133313331333132313331311211311331333113121   <<    C13112133313331323321333133313331333133313331323133313112113113313331131213   >>      C13112133313331323321333133313331333133313331323133313112113113313331131212   >>