C31231211111133131211113313331333133312111133133313231333133313331322331313321   >>    C3123121111113313121111331333133313331211113313331323133313331333132233131332   <<    C31231211111133131211113313331333133312111133133313231333133313331322331313323   >>      C31231211111133131211113313331333133312111133133313231333133313331322331313322   >>