C13112133313331323321333133313331333133313331322331322331333132321311   >>    C1311213331333132332133313331333133313331333132233132233133313232131   <<    C13112133313331323321333133313331333133313331322331322331333132321313   >>      C13112133313331323321333133313331333133313331322331322331333132321312   >>