C312312111133131212111133133313331322331323223313231333132313232212111   >>    C31231211113313121211113313331333132233132322331323133313231323221211   <<    C312312111133131212111133133313331322331323223313231333132313232212113   >>      C312312111133131212111133133313331322331323223313231333132313232212112   >>