C312312111133131212111133133313331322331323223313231333132322122321   >>    C31231211113313121211113313331333132233132322331323133313232212232   <<    C312312111133131212111133133313331322331323223313231333132322122323   >>      C312312111133131212111133133313331322331323223313231333132322122322   >>