C312312111133131212111133133313331322331323223313231333132313232322321   >>    C31231211113313121211113313331333132233132322331323133313231323232232   <<    C312312111133131212111133133313331322331323223313231333132313232322323   >>      C312312111133131212111133133313331322331323223313231333132313232322322   >>