C11111333133313232233133313331333132313331323321313331333132213231311211323131   >>    C1111133313331323223313331333133313231333132332131333133313221323131121132313   <<    C11111333133313232233133313331333132313331323321313331333132213231311211323133   >>      C11111333133313232233133313331333132313331323321313331333132213231311211323132   >>