C131121333133313233213331333133313231333133313331333132321323311   >>    C13112133313331323321333133313331323133313331333133313232132331   <<    C131121333133313233213331333133313231333133313331333132321323313   >>      C131121333133313233213331333133313231333133313331333132321323312   >>