C11111333133313232233133313331333133313233213331323133313221211113313132311   >>    C1111133313331323223313331333133313331323321333132313331322121111331313231   <<    C11111333133313232233133313331333133313233213331323133313221211113313132313   >>      C11111333133313232233133313331333133313233213331323133313221211113313132312   >>