C13112133313331323321333133313331333133313331323131133132321221   >>    C1311213331333132332133313331333133313331333132313113313232122   <<    C13112133313331323321333133313331333133313331323131133132321223   >>      C13112133313331323321333133313331333133313331323131133132321222   >>