C11111333133313232233133313331333132313331323321313331323133312131121   >>    C1111133313331323223313331333133313231333132332131333132313331213112   <<    C11111333133313232233133313331333132313331323321313331323133312131123   >>      C11111333133313232233133313331333132313331323321313331323133312131122   >>