C13112133313331323321333133313331333133313331313331322331312331313231   >>    C1311213331333132332133313331333133313331333131333132233131233131323   <<    C13112133313331323321333133313331333133313331313331322331312331313233   >>      C13112133313331323321333133313331333133313331313331322331312331313232   >>